If line BC is congruent to line BD then angles C and D are also congruent so you would set up the problem to find x as: 5x-19=2x+14 +19 +19 ____________ 5x=2x+33 -2 -2 _____________ 3/3x=33/3 ____________ x=11 Just pug in x to the equations to solve the rest
