The solution of equation 5x-3m = 4x + 2 is between 2 and 5

The solution of equation 5x-3m = 4x + 2 is between 2 and 5

5x-3m=4x+2
That is, x = 3M + 2
Two
The original formula - 〉 x = 3M + 2
Bring 2.5 in
2= 3m+2
5 = 3m+2
Launch 0
When m takes what value, the solution of the equation 4x + m (X-6) = 2 (2-3m) about X is a positive integer, and the solution of the equation is obtained
In my opinion, I don't know if it's right. I get 4x + MX = 4-6m + 6mx = 4 / (4 + m) because x is a positive integer, so (4 + m) is a factor of 4, that is, M = 0 or - 2 or - 3. But there should be a requirement for the value of M, is it an integer? In fact, M can be equal to the ratio of many values, such as - 3.5, - 3.95, as long as (4 + m)
4x+m（x-6）=2（2-3m）
(4+m)x=4
x=4/(4+m)
The factor of 4 is 1,2,4,
When 4 + M = 1,2,4, M = - 3, - 2,0
m=-3,x=4,
m=-2,x=2
m=0,x=1
Variable separation,
If the equation 5x-2a-1 = x and 7x = 3 (a-5 / 3x) - 3 have the same solution, then the square of (A-1) is?
Come on, it's coming!
There is another question: if the height of the cylinder is 5cm, and the area of the expanded side view of the cylinder is the square of 20 π cm, then the radius of its bottom is cm
5x-2a-1=x
4x=2a+1
x=(2a+1)/4
7x=3(a- 5/3x)-3
7x=3a-5x-3
12x=3a-3
4x=a-1
x=(a-1)/4
Because they have the same solution
So (2a + 1) / 4 = (A-1) / 4
2a+1=a-1
2a+2=a
a+2=0
a=-2
The square of (A-1) = (- 2-1) = (- 3) = 9
A: its value is 9
Given x + 4x-4 = 0, then the value of 3x + 12x + 2000 is ()
X square + 4x-4 = 0
x²+4x=4
therefore
3x²+12x+2000
=3×（x²+4x）+2000
=3×4+2000
=2012
two thousand and twelve
X2 + 4x-4 = 0, then the value of 3x2 + 12x + 2000 is ()
X2+4x=4
3x2+12x+2000
=3(x2+4x)+2000
=3x4+2000
=12+2000
=2012
Solve this equation: (3x / 5-30) / 130% = (2x / 5) / 120%
130%*（2x/5）=120%*（3x/5-30）
13*2x/5=12*（3x/5-30）
26x/5=36x/5-360
360=2x
x=180
I'm glad to answer for you. If you are satisfied with my answer, please accept it as a satisfactory answer,
If we know that the value of X + 4x-4 is 0, what is - 3x-12x + 5?
X＋4X－4=0 > X＋4X=4 -3X-12X+5=-3(X＋4X)+5=-12+5=-7
How to solve the equation x + 1 / x ^ 2-x minus 1 / 3x = x + 5 / 3x-3?
(x+1)/(x^2-x) -1/3x=(x+5)/(3x-3)
(x + 1) / X (x-1) - 1 / 3x = (x + 5) / 3 (x-1) multiply by 3x (x-1)
3(x+1)-(x-1)=x(x+5)
2x+4=x^2+5x
x^2+3x-4=0
(x+4)(x-1)=0
x1=-4 x2=1
If the value of x2 + 4x-1 is 0, then the value of 3x2 + 12x-5 is ()
A. 2B. -2C. 8D. -8
∵ x2 + 4x-1 = 0, ∵ x2 + 4x = 1, ∵ 3x2 + 12x-5 = 3 (x2 + 4x) - 5 = 3-5 = - 2
How to solve the equation of (x △ 30) × 50 + 200 = 3x?
Forget it, the apples in the fruit shop are three times as big as pears. They sell 50 kg of apples and 30 kg of pears every day. A few days later, the pears are sold out, and there are still 200 kg of apples left. How many kg of apples are there in this shop? No equations!
(X÷30)×50+200=3X
5/3x+200=3x
3x-5/3x=200
4/3x=200
x=200*3/4
x=150
(X÷30)×50+200=3X
5/3x+200=3x
4/3x=200
x=150
50x/30+200=3x
(simplify 50x / 30 to 5 / 3 * x and move to the right of the equation) 200 = 3x-5 / 3 * x
200=9/3*x-5/3*x
(unknown x moves left) 4 / 3 * x = 200
... unfold
50x/30+200=3x
(simplify 50x / 30 to 5 / 3 * x and move to the right of the equation) 200 = 3x-5 / 3 * x
200=9/3*x-5/3*x
(unknown x moves left) 4 / 3 * x = 200
x= 200*3/4
X = 150 ° Stow
If x ^ 2 + X + M = (x-n) ^ 2, then M =, n =, 2. If the value of x ^ 2 + 4x-4 is 0, then the value of 3x ^ 2 + 12x-5 is 3. (x + 1) (x + 2) (x + 3) (x + 4) - 24
1. Because x ^ 2 + X + M = (x-n) ^ 2 = x ^ 2-2nx + n ^ 2
So n = - 1 / 2, M = 1 / 4
2. Because x ^ 2 + 4x-4 = 0, x ^ 2 + 4x = 4
So 3x ^ 2 + 12x-5 = 3 (x ^ 2 + 4x) - 5 = 3 × 4-5 = 7
Three