Simplify each term.

Apply the distributive property.

Multiply by .

Multiply by .

Apply the distributive property.

Multiply by .

Multiply by .

Simplify by adding terms.

Combine the opposite terms in .

Add and .

Add and .

Add and .

Since , there are no solutions.

No solution

Solve for k -6(1+7k)+7(1+6k)=-2