12+(-6x)=30(-3)

Multiply 30 by -3.

12-6x=-90

Subtract 12 from both sides of the equation.

-6x=-90-12

Subtract 12 from -90.

-6x=-102

-6x=-102

Divide each term in -6x=-102 by -6.

-6x-6=-102-6

Cancel the common factor of -6.

Cancel the common factor.

-6x-6=-102-6

Divide x by 1.

x=-102-6

x=-102-6

Divide -102 by -6.

x=17

x=17

Solve using the Square Root Property 12+(-6x)=30(-3)