Mathematics, 07.12.2020 16:30 antonio9768

In ΔBCD, \text{m}\angle B = (8x+9)^{\circ}m∠B=(8x+9) ∘ , \text{m}\angle C = (5x+5)^{\circ}m∠C=(5x+5) ∘ , and \text{m}\angle D = (2x+1)^{\circ}m∠D=(2x+1) ∘ . What is the value of x?x?

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In ΔBCD, \text{m}\angle B = (8x+9)^{\circ}m∠B=(8x+9) ∘ , \text{m}\angle C = (5x+5)^{\circ}m∠C=(5x+5)...