解方程：6x=7分之12 5分之4x=8 7分之6x=5分之3

6x = 12\7
x = 12\7 × 1\6
x = 2\7
4x\5 =8
x = 8÷ 4\5
x = 10
6x\7 = 3\5
x = 3\5 ÷ 6\7
x = 7\10