Question

Tim chu so a va b ; 1abx126=201ab

Answer 1

1ab x 126=201ab
(100+ab) x 126=20100+ab
100 x 126+ab x 126=20100+ab
12600+ab x 126=20100+ab
ab x 126-ab=20100-12600
ab x 126-ab x 1=7500
ab x (126-1)=7500
ab x 125=7500
ab=7500:125
ab=60=>  a=6 và b=0

Answer 2

1ab x 126=201ab

(100+ab) x 126=20100+ab

100 x 126+ab x 126=20100+ab

12600+ab x 126=20100+ab

ab x 126-ab=20100-12600

ab x 126-ab x 1=7500

ab x (126-1)=7500

ab x 125=7500

ab=7500:125

ab=60  a=6 và b=0

Answer 3

A=6

B=0