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2 years ago

12

X = [?]

1 answer:

Alexxandr [17]2 years ago

3 0

Answer: x = 21

Explanation:

3x + 18 + 4x + 15 = 180

7x + 33 = 180
7x = 180 - 33
7x = 147
x = 21

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3 years ago

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2 years ago

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