Rozwiąż rownanie.
{30 + x = y
{ x + y = 350
x=y-30
y-30+y=350
2y=380
y=190
x=190-30
x=160
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x=y-30
y-30+y=350
x=y-30
2y=380
x=y-30
y=190
x=190-30
y=190
x=160
y=190