Question

The measure of one supplementary angle is 45 degrees more than twice the measure of the other. Write an equation to find the measure of each angle. Solve to find each angle

Answer 1

supplementary means they add up to 180°
x=2y+45
180= x+y
plug in
180= 2y+45+y
180=3y+45
-45 both sides
135=3y
÷3 both sides
45=y
solve for X
plug in
x=2 (45)+45x
x=90+45
x=135
y=45