Question

M∠P is 10 more than 3 times a number, m∠N is 8 less than 5 times the same number. What is m∠M?

Answer 1

∠n = ∠p

p - 3x = 10

5x - n = 8......>  5x - p = 8

by adding the two equations

2x = 18 , x = 9

p = 37

m∠M = 180 - (2*37) = 106°