What value of x makes this equation true?

12 (x+3) = -8x

a. - 9

b. 9

c. - 1.8

d. 17

Other:

-1.8 = x

Step-by-step explanation:

12 (x+3) = -8x

Distribute

12x + 36 = - 8x

Subtract 12x from each side

12x-12x + 36 = - 8x-12x

36 = - 20x

Divide each side by - 20

36/-20 = - 20x/-20

-9/5 = x

Changing to decimal form

-1.8 = x

c. - 1.8

Step-by-step explanation:

12 (x+3) = - 8x

12x + 36 = - 8x

20x = - 36

x = - 36/20

x = - 1.8