Question

-4+6x+2=12+5x
5+6x-10=20+x
-3+2x+6=15-x+9

Answer 1

Explicação passo-a-passo:

-4+6x+2=12+5x

6x-5x=12-2+4

x=10+4

x=14

5+6x-10=20+x

6x-x=20+10-5

5x=30-5

5x=25

x=25/5

x=5

-3+2x+6=15-x+9

2x+x=9-6+3

3x=3+3

3x=6

x=6/3

x=2