Question

tìm y biết: ( 5/7 - y ) * 14/5 = 7/10 + 1/2

Answer 1

 ( 5/7 - y ) * 14/5 = 7/10 + 1/2

( 5/7 - y ) x 14/5 = 6/5

 5/7 - y  = 6/5 : 14/5

5/7 - y = 3/7

y = 5/7 - 3/7

y = 2/7

Answer 2

bằng 2/7

Answer 3

2/7 dung 1000000%

Answer 4

2/7 là dung 100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000%