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x+x+5=29
2x+5=29 /-5
2x= 24 /:2
x= 12
x+5=17
12*17= 204
a+5=b
a+a+5=29
2a=29-5
2a=24 /2
a=12
b=17
12*17=205
odpowiedz C.
y-2 liczba w sumie
x+y=29
x=y+5
x+y=29
x-y=5
2x=24 \2
x=12
x-12=5
x=17
17*12=204
odp. c