Answer:
Answer:
The measure of angle x is 50 degrees
Step-by-step explanation:
we know that
x+y=90x+y=90 ----> equation A
x=2y-30x=2y−30 ----> equation B
solve the system by substitution
substitute equation B in equation A
(2y-30)+y=90(2y−30)+y=90
solve for y
3y=90+303y=90+30
3y=1203y=120
y=40^oy=40
o
Find the measure of angle x
x=2(40)-30=50^ox=2(40)−30=50
o
therefore
The measure of angle x is 50 degrees
