(1-3/4)X+(1-1/2)x(300-X)=91怎么解方程?
问题描述:
(1-3/4)X+(1-1/2)x(300-X)=91怎么解方程?
答
x/4+(300-x)/2=91
x+600-2x=364
-x=-236
x=236