Rozwiąż układ metodą podstawiania :
2x+y= 7y - (4x + 6)
3x - 2y = (3x - 7y ) + 5
2x+y=7y-4x-6
3x-2y=3x-7y+5
2x+y-7y+4x=-6
3x-2y-3x+7y=5
6x-6y=-6
0x+5y=5
5y=5/: 5
y=1
6x-6=-6
6x=-6+6
6x=0/: 6
x=0
2x + y = 7y - (4x + 6)
2x + y = 7y - 4x - 6
3x - 2y = 3x - 7y + 5
2x + 4x + y - 7y = -6
3x - 3x - 2y + 7y = 5
6x - 6y = -6 /: 6
5y = 5 /: 5
x - y = -1
y = 1
x - 1 = -1
x = 1-1
x = 0
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2x+y= 7y - (4x + 6)
3x - 2y = (3x - 7y ) + 5
2x+y=7y-4x-6
3x-2y=3x-7y+5
2x+y-7y+4x=-6
3x-2y-3x+7y=5
6x-6y=-6
0x+5y=5
6x-6y=-6
5y=5/: 5
6x-6y=-6
y=1
6x-6=-6
6x=-6+6
6x=0/: 6
x=0
x=0
y=1
2x + y = 7y - (4x + 6)
3x - 2y = (3x - 7y ) + 5
2x + y = 7y - 4x - 6
3x - 2y = 3x - 7y + 5
2x + 4x + y - 7y = -6
3x - 3x - 2y + 7y = 5
6x - 6y = -6 /: 6
5y = 5 /: 5
x - y = -1
y = 1
x - 1 = -1
y = 1
x = 1-1
y = 1
x = 0
y = 1