Paul M. answered 08/29/19
Tutor
New to Wyzant
p + q = 180
p = 2q - 21
substitute
2q - 21 + q = 180
3q = 201
q=67
p=113
Paul M. answered 08/29/19
p + q = 180
p = 2q - 21
substitute
2q - 21 + q = 180
3q = 201
q=67
p=113
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