Give me ten equations and answers

Give me ten equations and answers

①2(x-2)-3(4x-1)=9(1-x)
2x-4-12x+3=9-9x
x=10
②11x+64-2x=100-9x
18x=36
x=2
③15-(8-5x)=7x+(4-3x)
15-8+5x=7x+4-3x
x=-3
④2(x-2)+2=x+1
2x-4+2=x+1
x=3
⑤4(x+2)=5(x-2)
4x+8=5x-10
x=18
⑥ 120-4(x+5)=25
120-4x-20=25
-4x=75
x=-75/4
⑦30x-10(10-x)=100
30x-100+10x=100
40x=200
x=5
⑧12.5-3x=6.5
6=3x
x=2
⑨7x+6=8-3x
10x=2
x=1/5
⑩1-4(x+3)=3(x+2)
1-4x-12=3x+6
-17=7x
x=-17/7

The solution of the equation of first degree with one variable
If the equation (m-1) x ^ 2 + (4m + 3) x + 3M = 5 (x is not equal to 0) about X is a linear equation of one variable, find the value of M and the solution of the equation

That is, there is no quadratic term of X
So the coefficient of X & # 178 is 0
m-1=0
So m = 1
m=1
So the equation is 7x + 3 = 5
7x=2
So the solution of the equation is x = 2 / 7

Solving problems of linear equation with one variable
If the equation 3x ^ n + 1 + 2x-7 = 1 (x is not equal to 0) about X is a linear equation of one variable, find the value of N and the solution of the equation Black lines all over my face , sit and wait

If the equation is a linear equation of one variable, then the value of n is 0 or 1
When n = 0, the original equation becomes: 3 + 1 + X-7 = 1, and the solution is x = 4
When n = 1, the original equation becomes: 3x + 1 + 2x-7 = 1, and the solution is x = 7 / 5