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a fost răspuns

a) x+y =10
x-y =2
b)x+y =30
x÷y=4
c)x-y= 24
x÷y=5
d)x+y=47
x÷y = 4rest 2
e) x-y=28
x÷y =3 rest 6

Răspuns :

Funnymod
a) x + y=10
x=y+2 y +2+y=10 2y=8 y=4 x=6
b) x+y=30
x=4y 4y+y=30 5y=30 y=6 x=24
c) x-y=24
x=5y 5y-y=24 4y=26 y=6 x=30
d) x+y=47
x=4y+2 4y+2+y=47 5y=45 y=9 x=38
e) x-y=28
x=3y+6 3y+6-y=28 2y=22 y=11
x=39

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