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Sprawdzenia do zad
a) x+7=15/-7
x=8
b) y-1=6/-1
y=7
c) z-4 =18/+4
z=14
d) 6x=42/:6
x=-7
spr:
8 +7= 15
15=15
Spr:
7-1=6
6=6
z=14 <--- błąd powinno być z=22, ponieważ 18+4=22
22-4=18
18=18
6*7=42
42=42
a) +7
b)y-1=6/+1
c)z-4=18/+4
z=22
x=7
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a) x+7=15/-7
x=8
spr:
8 +7= 15
15=15
b) y-1=6/-1
y=7
Spr:
7-1=6
6=6
c) z-4 =18/+4
z=14 <--- błąd powinno być z=22, ponieważ 18+4=22
Spr:
22-4=18
18=18
d) 6x=42/:6
x=-7
Spr:
6*7=42
42=42
a) +7
b)y-1=6/+1
y=7
c)z-4=18/+4
z=22
d) 6x=42/:6
x=7