285-X+19+(1-1/11)X=285+5怎么解
问题描述:
285-X+19+(1-1/11)X=285+5怎么解
答
285-X+19+(1-1/11)X=285+5
285-x+19+x-x/11=285+5
-13x/11=-14
x=11又11/13谢谢19-(285-x)*1/11=6怎么解19-(285-x)*1/11=619-285/11+x/11=6x/11=6-19+285/11x/11=12又10/11X=120