解方程1/8y+12=1/20+36
问题描述:
解方程1/8y+12=1/20+36
是1/20y+36
答
1/8y+12=1/20y+36
1/8y-1/20y=36-12
5/40y-2/40y=24
3/40y=24
y=24x40/3
y=320