Move all terms not containing x to the right side of the equation.
Subtract 9 from both sides of the equation.
Subtract 9 from 15.
Divide each term by -2 and simplify.
Divide each term in -2x=6 by -2.
Cancel the common factor of -2.
Cancel the common factor.
Divide x by 1.
Divide 6 by -2.
Solve for x 9-2x=15