Help me solve this equation [proportion] Thank you ×+20-64∶×-32=3∶4

Help me solve this equation [proportion] Thank you ×+20-64∶×-32=3∶4

4(x-44)=3(x-32)
4x-176=3x-96
x=-80

x-30%x=14
x+25%x=20

x-30%x=14
70%x=14
x=20
x+25%x=20
125%x=20
x=16

A rectangle is 10cm long and 6cm wide. If you cut out a square with 1cm side length from its four corners, what is the perimeter of the remaining figure?

(10 + 6) * 2 = 32cm and the perimeter of the original rectangle remains unchanged

English Translation: self introduction

introduce myself

As shown in the figure, point C is on line AB, and AC = 6cm, BC = 4cm. M is the midpoint of line AC, and N is the midpoint of line BC. Find the length of Mn
. a m c n B; 2) if AC + BC = A and other conditions remain unchanged, can you guess the length of Mn? Please describe the law you found in a brief sentence

M. N is the midpoint of AC and BC respectively,
∴CM=1/2AC=3㎝,CN=1/2BC=2㎝,
∴MN=CM+CN=5㎝.
M. N is the midpoint of AC and BC respectively,
∴CM=1/2AC,CN=1/2BC,
∴MN=CM+CN=1/2(AC+BC)=1/2AB=1/2a.
Mn is always half of ab

Form sentences
Is/naughty/Daming/in/class/his/?
you/on/floor/Were/the/second/?
were/on/We/first/the/.floor/.

1 Is Daming naughty in his class?
Is Daming naughty in his class?
2 Were you on the second floor?
Are you on the second floor?
3 We were on the first floor.
We are on the first floor

If you add 7 to the denominator of a number, it will be 4 / 15 after simplification. If you subtract 7 from the denominator, it will be 1 / 2 after simplification. You need to be careful and explain every step to get this score
I'll make more money
Add 50 points to the formula!

Let X be the numerator and y the denominator
x/(y+7)=4/15
x/(y-7)=1/2
x=4/15(y+7)
x=1/2(y-7)
4/15(y+7)=1/2(y-7)
8(y+7)=15(y-7)
8y+56=15y-105
15y-8y=56+105
7y=161
y=23
x=4/15x(23+7)=8
So it's 8 / 23

Is the class singular or plural

The class is the whole, so it is singular

Xiao Ming is calculating (3a ^ 2B ^ 4-6a ^ 3B ^ 3 + 4A ^ 4B ^ 2) / Black split line In addition, the ink is stained black,
Given that the correct calculation result of this problem is 3AB, can you help Xiao Ming find out the answer? (Xiao Ming eats apples every day, goes to Xiao Hong's house every day, overturns the ink every day, and makes mistakes every day Welcome to add ~...)

Welcome to add Xiao Ming's sin

Fill in the blanks with English words and phrases
lt is impolite to _ those persons in troubie

mock
laugh at