180k views
5 votes
What is the answer to this question 3a - 15 = 6

User Snips
by
5.7k points

2 Answers

1 vote

A=7

3a-15=6

+15 +15

(So add 15 to both sides)

3a=21

———

3

(Divide both sides by 3)

A=7

User AnKing
by
6.5k points
2 votes

Answer:

a=7

Explanation:

1) Add 15 to both sides

3a=6+15

2) Simplify 6+156+15 to 21

a=21/3

3) Simplify the fraction 21/3 to 7.

a=7

User Dancow
by
5.8k points