-7x+6y+3x-2y+x-3y dla x=- dwie trzecie i y=cztery siudme
PROSZĘ POMUSZCIE
-7x + 6y + 3x - 2y + x - 3y = -3x + y
-7x+6y+3x-2y+x-3y=-3x+y
x=-2/3, y=4/7
-3*(-2/3)+4/7=6/3+4/7=2 4/7
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-7x + 6y + 3x - 2y + x - 3y = -3x + y
-7x+6y+3x-2y+x-3y=-3x+y
x=-2/3, y=4/7
-3*(-2/3)+4/7=6/3+4/7=2 4/7