17.1÷(17.28+X)=0.57怎么解?
问题描述:
17.1÷(17.28+X)=0.57怎么解?
答
17.1÷(17.28+X)=0.57
17.1=0.57x(17.28+X)
17.1=0.57x17.28+0.57X
17.1-9.8496=0.57X
7.2504=0.57X
X=12.72