Question

3道方程（快啊!）1.3/4X减5X%=3.52.X减7.2/4=X+9.6/83.X+4/5X除以5/6=294

Answer 1

1.3/4x-5x%=3.5

0.75x-0.05x=3.5

0.7x=3.5

x=5

2.题目是 1/4（x-7.2）=x+9.6/8吗?

1/4x-1.8=x+1.2

0.75x=3

x=4

3.（x+4/5x）/5/6=294

(9/5x）/5/6=294

（9x/5）*（6/5）=294

54x/25=294

x=1225/9