Question

Angles X and Y are supplementary. Angle X is 3 times the measure of angle Y. What is the measure of angle X?

Answer 1

x+y=180
x=3y
3y+y=180.
4y=180
y=45
therefore angle x=3y=3*45=135

Answer 2

x+y=180
so.... it is given tht x is 3 times the y
so
x=3y
3y+y=180
4y=180
y=45

@sonu