Question

a+b=105. a:b =2rest 9. a,b=? ajutor repede

Answer 1

Folosim formula impartirii cu rest, care este:
D=Î*C+R
a=D
b=Î
2=C
9=R
a:b=2 r 9
a=b*2+9
a=2b+9
2b+9+b=105
3b+9=105
3b=105-9
3b=96/ :3
b=96:3
b=32
a=b*2+9
a=32*2+9
a=64+9
a=73
a+b=73+32=105
a:b=73:32=2 rest 9
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