怎么解方程:200x+50*(22-x)=1400
问题描述:
怎么解方程:200x+50*(22-x)=1400
答
200x+50*(22-x)=1400
200x+1100-50x=1400
200x-50x =1400-1100
150x=300
x=300/150
x=2
答
x=2
答
200x+50*(22-x)=1400
200x+1100-50x=1400
150x=300
x=300/150
x=2
答
200x+50*22-50x=1400
200x+1100-50x=1400
150x+1100=1400
300=150x
x=2