Answer:
x = 25
Explanation:
(2x + 10)° and 30° form the right angle (90°) , then
sum the 2 angles and equate to 90
2x + 10 + 30 = 90
2x + 40 = 90 ( subtract 40 from both sides )
2x = 50 ( divide both sides by 2 )
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