Given that K is an integer, it makes the solution of the equation (k-99) x = 111-100x about X an integer. Try to find all k satisfying the above conditions Given that K is an integer, it makes the solution of the equation (k-99) x = 111-100x about X an integer Try to find the value of all k satisfying the above conditions First degree equation of one variable and its solution in junior high school (Volume B) Tonight! Before 7 o'clock!

Given that K is an integer, it makes the solution of the equation (k-99) x = 111-100x about X an integer. Try to find all k satisfying the above conditions Given that K is an integer, it makes the solution of the equation (k-99) x = 111-100x about X an integer Try to find the value of all k satisfying the above conditions First degree equation of one variable and its solution in junior high school (Volume B) Tonight! Before 7 o'clock!

(k-99)x=111-100x
(k-99)x+100x=111
(k+1)x=111
Because the solution is an integer, K is an integer, and K + 1 is an integer
The values of X are - 111, - 37, - 3, - 1, 1, 3, 37 and 111
The corresponding K values are - 2, - 4, - 38, - 112, 110, 36, 2, 0

(1 / 2 + 1 / 3 +. + 1 / 1997) (1 + 1 / 2 +. + 1 / 1996)-（
1 + 1 / 2 +. 1 / 1997) (1 / 2 + 1 / 3 +. + 1 / 1996)
one
If it can be simple, it should be simple!

Let (1 / 2 + 1 / 3 +. + 1 / 1996) = x, then:
(x+1/1997)(1+x)-(1+x+ 1/1997)(x)
=x+xx+1/1997+x1/1997-x-xx-x1/1997
=1/1997

Skillful calculation in mathematics
(1+1/2)*(1+1/2^2)*(1+1/2^8)+1/2^15
Don't use decimals. To be expressed in fractions.

The previous formula is multiplied by (1-1 / 2) * (1 + 1 / 2 ^ 4) and then divided by it. The result is (32 * 2 ^ 15-17) / 17 * 2 ^ 15 = 1048559 / 557056

Seven mathematical complete square formula!
If you look down on me, mentally retarded = =
When a and B are the values, 4A + b-12a + 4B + 30 has the minimum value, and the minimum value can be obtained
I have the right answer. Give me the wrong answer
Even the teacher said it was difficult.
I'm sorry I knocked out the title! TAT、、
It's 4A & sup2; + B & sup2; - 12a + 4B + 30

According to what are the 3 ^ 2 and 2 ^ 2 disassembled or added? Please answer 0 patiently.

If a three digit number is divided by 58, the quotient A is more than B (both a and B are natural numbers), and the maximum value of a + B is______ ．

According to the meaning of the question, the maximum remainder is 57, the maximum quotient A is: (999-57) △ 58 ≈ 16, the maximum value of a + B is: 16 + 57 = 73

Reading comprehension of heart window
Cardiac window
A lively little girl, who broke her leg in skiing, was admitted to the hospital. She was lying on the bed, unable to move. She was miserable. She lived like a year, weeping all day
With her ward, near the window is a kind old lady, her leg disease is almost cured, every day can sit up and watch the scenery outside the window. The little girl how want to see the scenery outside the window! But her leg splint, high hanging, the body can not sit up, and far away from the window
One day, when the old lady opened the window again, the little girl couldn't help asking, "grandma, what do you see? Can you tell me?" the old lady readily agreed, "OK." from then on, the old lady gave her a detailed description of the beautiful scenery outside the window every day, The depression in my heart gradually disappeared
A month later, the old lady was discharged from the hospital. She couldn't wait to struggle to get up. She stretched her neck and looked out of the window. She was shocked: all she could see out of the window was a black wall! At this time, the little girl's heart suddenly brightened. It turned out that the old lady had opened a heart window for her!
Later, whenever the little girl met with setbacks and sadness, she would think of this respectable old lady and the beautiful scenery outside the window she described for herself
1. Talk about the meaning of "heart window" in connection with the full text
What are your feelings after reading this essay? Please write it down
3. After listening to the old lady's description, what kind of beautiful scenery will emerge in your mind?

1. What attitude do you use to see the world, what will the world look like
2. Granny's white lies give the little girl the space to imagine and the courage and strength to fight against the pain. She spent the most depressed and helpless time with the little girl. In the little girl's heart, she sowed a white seed. So although she didn't see it, the window was opened in the little girl's heart
3. The snow is falling down, as if covering the whole world. On the roof, the streets are covered with thick white feather coats. Outside the window, there is a tall pine. The naughty snow elves put on a white pile cap for it. The disobedient kitten is also curious about the white world, and runs out from the white "carpet" hiding from the cat mother, Soft small feet to the earth printed on a lovely plum blossom

Outline of the content of lesson 22 in the fifth grade of primary school Chinese (PEP)
There are three texts in lesson 22: 1. Wrestling between xiaogazi and pangdun; 2. Yan Jiansheng before his death; 3. Fengcapsi meets Lin Daiyu for the first time

It's a group of characters

X + (x + 1) (x + 2) + (x + 3) = 58
I am the elder brother and elder sisters of primary school········

The equation is: x ^ 3 + 6x ^ 2 + 12x-52 = 0
Formula method
X1=1.91486764116886
X2=-3.95743382058443-3.3903748297059i
X3=-3.95743382058443+3.3903748297059i

How to write the simple calculation of 99 * 99 + 199?
If anyone can tell me the answer, I'm very grateful~
Please help me

99×99+199
=99×99+99+100
=99×(99+1)+100
=99×100+100
=(99+1)×100
=100×100
=10000

A math textbook problem in volume one of grade nine
If we know the two heights be and CF of triangle ABC, and point m is the midpoint of BC, we prove that me = MF

In the right triangle BEC, M is the midpoint of BC
Then BM = MC = me (theorem of right triangle in circle)
Similarly, in the RT triangle BFC, M is the midpoint of BC
Then BM = MC = MF
So me = MF