Solve the problem, 3 (x-7) = 9. Show all of your work.

Question

Mathematics

Elliana Branch

1 March, 15:54

Solve the problem, 3 (x-7) = 9. Show all of your work.

+2

Answers (2)

Know the Answer?

Micaela Massey · Answer 1

First you would distribute. 3 times x and 3 times negative 7. Then you would add negative 21 to 9 to get 30. Then you divide 3x from 30 to get 10.

So the answer is 10

Mara Nolan · Answer 2

3 (x - 7) = 9

(3 * x) - (3 * 7) = 9

3x - 21 = 9

3x - 21 + 21 = 9 + 21

3x = 30

3x/3 = 30/3

x = 10

3 (10 - 7) = 9

(3 * 10) - (3 * 7) = 9

30 - 21 = 9

9 = 9