Question

x+20+3x-5+65°=180°
$x + 20 + 3x - 5 + 65 = 180$
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Answer 1

Step-by-step explanation:

x + 20 + 3x - 5 + 65 = 180

4x + 80 = 180

4x = 100 .........( 180 - 80 )

x = 25

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