4/5x+1=7/8(x-1)解方程?4/5x+1=7/8(x-1)解:4/5x+1=7/8x-7/81+7/8=7/8x-4/5x15/8=3/40xx=15/8÷3/40x=25
解:4/5(x)+1=7/8(x-1)所以32x+40=35x-35,x=75
4/5x+1=7/8x-7/87/8x-4/5x=1+7/83/40x=15/8x=15/8×(40/3)=75/3x=25