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Help!!! please i don’t understand
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5 votes
Help!!! please i don’t understand

Help!!! please i don’t understand-example-1
User Tracyann
by
5.4k points

1 Answer

3 votes

Answer:

x = 10

Explanation:

DEC is a right angle, right angles equal 90 degrees

so this means 7x + 20 needs to equal 90

7 x 10 + 20 = 90

User Fernando Barbosa
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5.4k points
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