Question

Determina nr abc pt care 6bc+a7c+ab8=2018

Answer 1

6bc + a7c + ab8 = 2018

( 100 × 6 + 10 × b + c ) + ( 100 × a + 10 × 7 + c ) + ( 100 × a + 10 × b + 8 ) = 2018

( 600 + 10b + c ) + ( 100a + 70 + c ) + ( 100a + 10b + 8 ) = 2018

( 10b + c + 100a + c + 100a + 10b ) + ( 600 + 70 + 8 ) = 2018

( 200a + 20b + 2c ) = 2018 - ( 600 + 70 + 8 )

( 200a + 20b + 2c ) = 2018 - 678

200a + 20b + 2c = 1340 | :2

100a + 10b + c = 670

abc = 670