Two angles are a linear pair x= 47 find y. Equation and answer
x = y y=47
x + y = 90 y=43
x + y = 180 y=133
Two angles are complementary x=15 find y. Equation and answer
x + y = 180 y=165
x= y y=15
x + y = 90 y=75
Two angles are vertical x=83 find y. Equation and answer
x + y = 180 y=97
x + y = 90 y=7
x = y y=83