Question

309 = 2014-a

412   512

Answer 1

309/412 = 2014 - a/512

ta có ; 2014 - a = 512 x 309 : 412 = 384

2014 - a = 384

a = 2014 - 384

a = 1630

Answer 2

     Ta có a=2014-309=2005

Vậy a=2005

Answer 3

1630 ban nhe

Answer 4

309/412 = 2014-a/512

Ta có : 2014 - a = 512 x 309 : 412 = 384

2014-a=384

a = 2014 - 384

a = 1630

Answer 5

1630 nhé pạn!!!!