Oblicz równanie sposobem podstawiania.
2x + 2y = 32
x = y-2
2x +2y =32
2*y-2+2y=32
2y-4+2y=32
2y+2y=28
4y=28
y=7
2x+2*7=32
2x+14=32
2x=18
x=9
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2x +2y =32
2*y-2+2y=32
2y-4+2y=32
2y+2y=28
4y=28
y=7
2x+2*7=32
2x+14=32
2x=18
x=9