Question

How do I solve this?

Answer 1

The answer is 7.5

Explanation:

3x+18=9x−27

3x+18−9x=9x−27−9x

−6x+18=−27

−6x+18−18=−27−18

−6x=−45

−6x /−6 = −45 /−6

x = 15 /2 which is equal to 7.5 as a decimal.