Question

решите уравнение

2/5 (x-2)=1/5x

Answer 1

2/5х-4/5=1/5х
2/5х-1/5х=4/5
1/5х=4/5
х=4/5:1/5
х=4/5*5
х=4

Answer 2

2/5х-10=1/5х
10х=5х-10
10х-5х=-10
х=-2

Answer 3

2/5x-5=1/5x
2/5x-1/5x=5
1x=5
x=5:1
x=5