What is the value for x?
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x =

Answer:
x = 6°
Step-by-step explanation:
∠A = ∠C (isoceles triangle)
∠C = 73°
∠B = 180° - ∠A - ∠C (angles in a triangle is 180°)
∠B = 180° - 73° - 73°
= 34°
∠B = 5x + 4
5x + 4 = 34
5x = 30
x = 6°