Question

Solve the linear equation. Then, find the sum of the digits of the answer.

(-7x-8)+9= -6(x+6)

a. 8
b. 10
c. 5
d. 4

Answer 1

b

Explanation:

(- 7x - 8) + 9 = - 6(x + 6) ← distribute by - 6

- 7x - 8 + 9 = - 6x - 36

- 7x + 1 = - 6x - 36 ( add 6x to both sides )

- x + 1 = - 36 ( subtract 1 from both sides )

- x = - 37 ( multiply both sides by - 1 )

x = 37

sum of digits of answer = 3 + 7 = 10