Answer:
25°
Explanation:
Step 1:
3x + x + 20° + 60° = 180° Sum of a Δ
Step 2:
4x + 80° = 180° Combine Like Terms
Step 3:
4x = 100° Subtract 80° on both sides
Step 4:
x = 100° ÷ 4 Divide
x = 25°
Hope This Helps :)
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