Solve for x 12x/5 a. x=-71/2 b. x=71/2 c. x = 43 1/5

x = - 12 6/7

Step-by-step explanation:

x - 12x/5 = 18

Get a common denominator on the left

5/5 x - 12/5x = 18

Subtract

-7/5 x = 18

Multiply each side by - 5/7 to isolate x

-5/7 * -7/5 x = - 5/7 * 18

x = - 5*18/7

x = - 90/7

Changing this to a mixed number

7 goes into 90 1 2 times with 6 left over

x = - 12 6/7