8k+8=40k+40

Subtract 40k from both sides of the equation.

8k+8-40k=40

Subtract 40k from 8k.

-32k+8=40

-32k+8=40

Subtract 8 from both sides of the equation.

-32k=40-8

Subtract 8 from 40.

-32k=32

-32k=32

Divide each term in -32k=32 by -32.

-32k-32=32-32

Cancel the common factor of -32.

Cancel the common factor.

-32k-32=32-32

Divide k by 1.

k=32-32

k=32-32

Divide 32 by -32.

k=-1

k=-1

Solve for k 8k+8=40k+40