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⅓x = ½y
⅓x = ½(x+5)
⅓x= ½x+2,5
-1/6x = 2,5 /: -1/6
x=15
y= x+5
y= 15+5
y =20
Liczba y
x=y+5
1/3x=1/2y
1/3(y+5)=1/2y
1/3y+5/3=1/2y
1/3y-1/2y=-5/3
2/6y-3/6y=-5/3
-1/6y=-5/3
y=-5/3:-1/6
y=-5/3*-6
y=10
x=y+5=10+5=15
Liczba x=15
Liczba y=10
Spr.
x=y+5
15=10+5
15=15
1/3x=1/2y
1/3*15=1/2*10
5=5
Odp.
Szukane liczby to 15 i 10
pozdrawiam:)