Solve the equation To find x, we do inverse operation. Inverse Operation is applying the opposite operation to the lonely number. 14-x=21 Inverse operation for positive 14 is -14 So we must apply that to both sides. 14-x=21 -14 -14 then we have -x=7 Because our variable has a -1x=7, we flip the signs so we get x=-7 So our final answer is x=-7
