Question 155905
3x/8+50+x+31=180
(3x+8x)/8=180-50-31
11x/8=99
11x=8*99
11x=792
x=792/11
x=72 answer.
Proof:
3*72/8+50+72+31=180
216/8+153=180
27+153=180
180=180