1 answer:
Answer:
x = 1
Step-by-step explanation:
Because ∠A and ∠B are vertical angles, they are equal hence we can write
∠A = ∠B
50x + 10 = 70x - 10
Now, you have to solve for x
subtract 50 on both sides
10 = 20x - 10
add 10 to both sides
20x = 20
divide 20 on both sides
x = 1
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