Rownania rownowazne
y=x-7
x=y+7
x-y=7
liczba x jest o 7 wieksza od y:
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Rownania rownowazne
y=x-7
x=y+7
x-y=7
liczba x jest o 7 wieksza od y:
y=x-7
x=y+7
x-y=7