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kolezko [41]
4 years ago
12

I need help please what is the x

Mathematics
1 answer:
ANEK [815]4 years ago
7 0

Answer:

x=4

Step-by-step explanation:

well you know that the square is 90 degrees so you set it up as 90=21x+6. Then you subtract 6 from both sides and it gets you 84=21x. Then divide 21 on both sides. So the answer is x=4

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