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  • Utilizator Brainly
2014-06-04T21:51:23+03:00
(a+a+1+a+2+a+3):7=12rest 6
a+a+1+a+2+a+3=90
4a+6=90
4a=84
a=21
b=22
c=23
d=24

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2014-06-04T21:53:38+03:00
(a+a+1+a+2+a+3):7=12 rest 6

4a+6=7*12+6

4a+6=84+6

4a=84

a=21

a+1=22
a+2=23
a+3=24