Answer:
3
Explanation:
5x = 12 + 3
x = 15/5
x = 3
First add 3 to each side
Then divide each side by 5
5x - 3 = 12
5x-3+3 = 12+3
5x = 15
5x/5 = 15/5
1.6m questions
2.0m answers