0.4分之(7x-5)=0.8分之3x
问题描述:
0.4分之(7x-5)=0.8分之3x
答
(7x-5)/0.4 = 3x/0.8
7x-5 = 3x/0.8 * 0.4
7x-5 = 3x/2
2*(7x - 5)=3x
14x - 10 = 3x
14x-3x = 10
11x=10
x=10/11
答
两边乘0.8
2(7x-5)=3x
14x-10=3x
14x-3x=10
11x=10
x=10/11