Rozwiąż układ równań.
1/2x-1/2y=-4
-2x+1/3y=8
1/2x-1/2y=-4/*4
2x-2y=-16
-2y+1/3y=-16+8
-1 2/3y=-8/:(-1 2/3)
y=-8/1 : (-5/3)
y=8/1 *3/5
y=24/5
y=4 4/5
2x-2*(4 4/5)=-16
2x-2*24/5=-16
2x-48/5=-16
2x-9 3/5=-16
2x=-16+9 3/5
2x=-6 2/5/:2
x=-32/5 * 1/2
x=32/10
x=3 2/10
x=3 1/5
1/2x-1/2y=-4 /*4
---------------------
-1i2/3y=-8
-5/3y=-8 /*(-3/5)
y=-8*(-3/5)
1/2x-1/2*24/5=-4
1/2x-24/10=-4
1/2x=-4+24/10
1/2x=-40/10+24/10
1/2x=-16/10 /*2
x=-32/10
x=-3i2/10
x=-3i1/5
y=4i4/5
spr.
1/2*(-3i1/5)-1/2*4i4/5=-4
1/2*(-16/5)-1/2*24/5=-4
-16/10-24/10=-4
-40/10=-4
-4=-4
L=P
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1/2x-1/2y=-4/*4
-2x+1/3y=8
2x-2y=-16
-2x+1/3y=8
-2y+1/3y=-16+8
-1 2/3y=-8/:(-1 2/3)
y=-8/1 : (-5/3)
y=8/1 *3/5
y=24/5
y=4 4/5
2x-2y=-16
2x-2*(4 4/5)=-16
2x-2*24/5=-16
2x-48/5=-16
2x-9 3/5=-16
2x=-16+9 3/5
2x=-6 2/5/:2
x=-32/5 * 1/2
x=32/10
x=3 2/10
x=3 1/5
1/2x-1/2y=-4 /*4
-2x+1/3y=8
2x-2y=-16
-2x+1/3y=8
---------------------
-1i2/3y=-8
-5/3y=-8 /*(-3/5)
y=-8*(-3/5)
y=24/5
1/2x-1/2*24/5=-4
1/2x-24/10=-4
1/2x=-4+24/10
1/2x=-40/10+24/10
1/2x=-16/10 /*2
x=-32/10
x=-3i2/10
x=-3i1/5
y=4i4/5
spr.
1/2*(-3i1/5)-1/2*4i4/5=-4
1/2*(-16/5)-1/2*24/5=-4
-16/10-24/10=-4
-40/10=-4
-4=-4
L=P