(2X-17)÷(X+17)=0.3怎么解
问题描述:
(2X-17)÷(X+17)=0.3怎么解
答
(2X-17)÷(X+17)=0.3
2X-17=0.3(X+17)
2X-17=0.3X+5.1
2X-0.3X=17+5.1
1.7X=22.1
X=22.1/1.7
X=13