PB9481GO PB9481GO Mathematics Answered n ΔBCD, m ∠ B = ( 5 x + 14 ) ∘ m∠B=(5x+14) ∘ , m ∠ C = ( x + 19 ) ∘ m∠C=(x+19) ∘ , and m ∠ D = ( 2 x + 19 ) ∘ m∠D=(2x+19) ∘ . What is the value of x ? x?