Question

como resolver?
2x - 20°+ x + 25°+ x +15°+ 3x/2 + x = 540

Answer 1

2x-20°+x+25°+x+15°+3x/2+x = 540°

mmc (1,2) = 2

(2.2x-2.20°+2.x+2.25°+2.x+2.15°+3x+2.x= 2.540°)/2

4x-40°+2x+50°+2x+30°+3x+2x= 1080°
4x+2x+2x+3x+2x-40°+50°+30°=1080°
13x-40°+80°=1080°
13x+40°=1080°
13x=1080°-40°
13x= 1040°
x = 1040°/13
x = 80°