Combine y and 12.
Move all terms not containing y to the right side of the equation.
Add 7 to both sides of the equation.
Add -11 and 7.
Multiply both sides of the equation by -2.
Simplify both sides of the equation.
Cancel the common factor of 2.
Move the leading negative in -y2 into the numerator.
Factor 2 out of -2.
Cancel the common factor.
Rewrite the expression.
Multiply -1 by -1.
Multiply y by 1.
Multiply -2 by -4.
Solve for y -1/2y-7=-11