Question

3x -2= 5- x +5 quien sabe

12-(5+x)=5x+7

7x-4= -5 -6x

porfavor

Answer 1

3x-2=5-x+5
3x+x=10+2
x=12/3=4

12-5-x=5x+7
-x-5x=7-12
-6x=-5
x=5/6

7x-4=-5-6x
7x+6x=-5+4
13x=-1
x=-1/13

Answer 2

3x-2=5-x+5
3x+x=5+5+2
4x=12
x=12/4
x=3

12-(5+x)=5x+7
12-5-x=5x+7
-x-5x=7-12+5
-6x=0
x=0/-6
x=0

7x-4=-5-6x
7x+6x=-5+4
13x=-1
x=-1/13

espero te sirva