0.5(x-1)=0.25x怎么解?
问题描述:
0.5(x-1)=0.25x怎么解?
答
先去括号,变成0.5x-0.5=0.25x
移项 0.25x=0.5
求解 x=0.5/0.25=2
答
0.5(x-1)=0.25x
0.5x-0.5=0.25x
0.5x-0.25x=0.5
0.25x=0.5
x=0.5/0.25=2