Move all terms containing x to the left side of the equation.
Subtract 9x from both sides of the equation.
Subtract 9x from 4x.
Subtract 15 from both sides of the equation.
Divide each term by -5 and simplify.
Divide each term in -5x=-15 by -5.
Cancel the common factor of -5.
Cancel the common factor.
Divide x by 1.
Divide -15 by -5.
Solve for x 4x+15=9x