Move all terms containing o to the left side of the equation.
Subtract 4o from both sides of the equation.
Subtract 4o from 7o.
Add 18 to both sides of the equation.
Divide each term by 3 and simplify.
Divide each term in 3o=18 by 3.
Cancel the common factor of 3.
Cancel the common factor.
Divide o by 1.
Divide 18 by 3.
Solve for o 7o-18=4o