3(3x/8-40)=5[x-240-(3x/8-40)]
9x/8-120=5(x-240-3x/8+40)
9x/8-120=5x-1200-15x/8+200
15x/8+9x/8-5x=120-1200+200
3x-5x=-880
-2x=-880
x=440
3(3x/8-40)=5[x-240-(3x/8-40)]
9x/8-120=5(x-240-3x/8+40)
9x/8-120=5x-1200-15x/8+200
15x/8+9x/8-5x=120-1200+200
3x-5x=-880
-2x=-880
x=440