3 years ago

PLS PLS PLS CAN SOMEONE HELP, ITS DUE TOMORROW, PLS ANSWER CORRECT AND EXPLAIN AND I WILL GIVE BRAINLIEST

Mathematics

1 answer:

Artyom0805 [142]3 years ago

5 0

Answer:

∠7 = 81°

Step-by-step explanation:

∠1 = ∠7

3x + 18 = 2x + 39

3x - 2x = 39 - 18

x = 21

∠7 = 2x + 39

∠7 = 2(21) + 39

∠7 = 42 + 39

∠7 = 81°

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