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Help!!! please i don’t understand

Help!!! please i don’t understand
asked 134k views
5 votes
Help!!! please i don’t understand

Help!!! please i don’t understand-example-1
asked
User Tracyann
by
8.1k 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

answered
User Fernando Barbosa
by
8.2k points
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