X-(12.5%X+12.5%X+16)=48.5这个方程怎么解?(过程要清楚)
问题描述:
X-(12.5%X+12.5%X+16)=48.5这个方程怎么解?(过程要清楚)
答
X-(12.5%X+12.5%X+16)=48.5
x-(25%x+16)=48.5
x-25%x-16=48.5
(1-25%)x=48.5+16
75%x=64.5
x=64.5÷75%
x=86