How do I find the answer to 2 - 7g = -9g

Answer 1

2 -7g = -9g add 9g to both sides

2 +2g = 0 subtract 2 from both sides

2g = -2 divide by 2

g = -1

check the answer

2 -7(-1) = -9(-1)

2 + 7 = 9

9=9