Question

Solve for the variable 4a-9=7a+12

Thanks!!

Answer 1

a = -7

Explanation:

Answer 2

a = - 7

Explanation:

Given

4a - 9 = 7a + 12 ( subtract 7a from both sides )

- 3a - 9 = 12 ( add 9 to both sides )

- 3a = 21 ( divide both sides by - 3 )

a = - 7