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Jet001 [13]
2 years ago
12

Solve for the value of x A) 12 B) 42 C) -12 D) -42

Mathematics
1 answer:
pentagon [3]2 years ago
3 0
The angles of a triangle will always add up to be 180 degrees total.

x + 82 + x + 82 + 40 = 180
2x + 164 + 40 = 180
2x + 204 = 180
Subtract 204 from both sides.
Think of it as “180 + (-204)”
2x = -24
Divide each side by 2.
x = -12

Answer: x = -12
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