napisz metodą podstawiania
2x-3y=6
4-2x=6-y
y-2x=2
y=2+2x
2x-3(2+2x)=6
2x-6-6x=6
-4x=12/:(-4)
x=-3
y=2+2*(-3)
y=2-6
y=-4
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2x-3y=6
4-2x=6-y
2x-3y=6
y-2x=2
y=2+2x
2x-3(2+2x)=6
y=2+2x
2x-6-6x=6
y=2+2x
-4x=12/:(-4)
x=-3
y=2+2*(-3)
x=-3
y=2-6
x=-3
y=-4