解:解方程, 此方程的解为x = 13/2,【即x = 6.5】
124 - 85 = 6x
6x = 124 - 85
6x = (100 + 24)- (100 - 15)
6x = 100 + 24 - 100 + 15
6x = (100 - 100)+(24 + 15)
6x = 0 + 39
6x = 39
x = 39 ÷ 6
x = 39 × 1/6
x = 39/6
x = 13/2
∴x = 6.5
答:此方程的解为x = 13/2,【即x = 6.5】
依据题意列式计算如下:
124-85=6x
6x=39
x=39÷6
x=6.5
124-85=6x
6x=39
x=13/2