Question

解方程：x/0.5-1/0.7=1；y/5-(y-1)/2=1-(y+2)/5

Answer 1

1、2X-10/7=1,

14X-10=7,

14X=17,

X=17/14.

2、2Y-5(Y-1)=10-2(Y+2),

2Y-5Y+5=10-2Y-4

-Y=1,

Y=-1.