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3x+4y-1=-0
-y=2x+4
3x+4y=1
y=-2x-4
3x+4y=1
y=-2x-4
3x+4(-2x-4)=1
y=-2x-4
3x-8x-16=1
y=-2x-4
-5x=1
y=-2x-4
x=-1/5
y=-2*(-1/5)-4
x=-1/5
y=2/5-4
x=-1/5
y=-3 3/5
x=-1/5
spr
y=-2x-4
-3 3/5=-2*(-1/5)-4
-3 3/5=2/5-4
-3 3/5= -3 3/5
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3x+4y-1=0
-y=2x+4
3x+4y=1
y=-2x-4
3x+4y=1
y=-2x-4
3x+4(-2x-4)=1
y=-2x-4
3x-8x-16=1
y=-2x-4
-5x=1
y=-2x-4
x=-1/5
y=-2*(-1/5)-4
x=-1/5
y=2/5-4
x=-1/5
y=-3 3/5
x=-1/5
3x+4y-1=-0
-2x-y=4
3x+4y=1
-y=4+2x..../:(-1)
3x+4y=1
y=-4-2x
3x-4(-4-2x)=1
y=-4-2x
2x+16+8x=1
y=-4-2x
10x=-15../:10
y=-4-2x
x=-1,5
y=-4-2*(-1,5)
x=-1,5
y=-4+3
x=-1,5
y=-1
x=-1,5
Sprawdzenie:
-2x-y-4=0
3x+4y-1=-0
-2*(-1,5)-(-1)- 4=0
3*(-1,5)+ 4*(-1)-1= 0
3+1 -4= 0
-4,5-4-1=0
0=0
0=0