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a +b =270 a÷b=9 r=20 a=? b=?

Răspuns :

a+b=270
a/b=9+20
a=9b+20
9b+20+b=270
10b=270-20
10b=250
b=250/10
b=25
a=9b+20=9*25+20=225+20=245
a+b=270
a:b=9  r=20
a=9b+20
9b+20+b=270
9b+b=270-20
10b=250
b=250:10
b=25
a=9x25+20=225+20
a=245

V: 245+25=270
    245:25=9 rest 20