Question

2x-6=-x+15 com a prova PFv

Answer 1

2x - 6 = -x + 15

2x + x = 15+6

3x = 21

x = 21 / 3

x = 7

Prova

2.7 - 6 = -7 + 15

14 - 6 = 8

8 - 8 = 0

Answer 2

2X-6= -X+15

3X=21

X=21:3

X=7