Answer:
Explanation:
X= -3
Abd = 88 degrees
Cbd = 23 degrees
Set the equation this way and solve:
-10x + 58 + 6x + 41 = 111
-4x + 99 = 111
-4x = 12
X = -3
m∠ABD = 88°, m∠CBD = 23°
m∠ABD + m∠CBD = m∠ABC = 111°
(-10x + 58) + (6x + 41) = 111
x = -3
m∠ ABD = -10(-3) + 58 = 88°
m∠CBD = 6(-3) + 41 = 23°
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