Move all terms not containing x to the right side of the equation.
Subtract 9 from both sides of the equation.
Subtract 9 from 24.
Divide each term by 3 and simplify.
Divide each term in 3x=15 by 3.
Cancel the common factor of 3.
Cancel the common factor.
Divide x by 1.
Divide 15 by 3.
Solve for x 3x+9=24