Question

como fazer essas contas 7x+1=6+6
5x-3=2x-9
9-x=x+10
4x-7+x=1
3-2x=4x

Answer 1

Olá,

7x+1 = 6+6
7x+1 = 12
7x = 12-1
7x = 11
x = 11/7

5x-3 = 2x-9
5x-2x = -9+3
3x = -6
x = -6/3
x = -2

9-x = x+10
-x-x = 10-9
-2x = 1
x = 1/-2
x = -1/2

4x-7+x = 1
5x-7 = 1
5x = 1+7
5x = 8
x = 8/5

3-2x = 4x
-2x-4x = -3
-6x = -3
x = -3/-6
x = 1/2