agavin2k agavin2k

16-01-2019
Mathematics

contestada

What must the value of x be, so that a parallel to b, m∠2 = 70°, and m∠7=(3x + 10)°?

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HappyTimesFollow HappyTimesFollow

16-01-2019

70=3x+10
Subtract 10 from both sides
60=3x
Divide both sides by 3
20=x
x=20

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