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Dmitriy789 [7]
3 years ago
9

Answer this Idk what tor do

Mathematics
1 answer:
zavuch27 [327]3 years ago
7 0
64-2/3=63.1/3 x8= 518.
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The two given and marked angles add up to 90.

A = x

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A + B = 90          Substitute for A and B. A and B are just letters I gave things.

x + 3x + 10 = 90        Combine the left

4x + 10 = 90              Subtract 10 from both sides.

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x = 20

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