Solve for x.
5x - 3 = 12
x = 9/5
x = -9/5
x = 3
x = -3

+4

(2) Answers

zane

5x - 3 = 12
5x = 12 + 3
5x = 15 [:5
x = 3
the right answer x = 3
Check
5 *x - 3 = 12
5 * 3 - 3 = 12
15 - 3 = 12
L = R

lithamericanox

Hi there! We have to find out what the mystery number is (x). First, we add 3 to both sides, 5x-3+3=12+3 which equals 5x=15. Then, we divide both sides by 5, 5x/5=15/5, 15/5=3. Therefore, our mystery number is 3, so the answer is x=3.