Rozwiąż układ równań.
1)
{ 6(x+y)=10y
{ y-x=0,5
2)
{ x/2=y/3
{ x+2,5=y
6x+6y=10y
y-x=0,5
4y=6x
2y=3x
1,5x-x=0,5
0,5x=0,5
x=1
y=1,5
3x=2y
x+2,5=y
x=2/3y
2/3y+2,5=y
1/3y=2,5
y=7,5
x=5
1]
y-x=0.5
6x=4y
y=0.5+x
6x=4[0.5+x]
6x=2+4x
2x=2/;2
y=0.5+1
y=1.5
2]
x/2=3/y/x6
x+2.5=y
x+2.5=y/ x[-3]
-3x-7.5=-3y
5y=7.5/;5
x=-2,5+1,5
x=-1
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6x+6y=10y
y-x=0,5
4y=6x
y-x=0,5
2y=3x
y-x=0,5
1,5x-x=0,5
0,5x=0,5
x=1
y=1,5
3x=2y
x+2,5=y
x=2/3y
2/3y+2,5=y
1/3y=2,5
y=7,5
x=5
1]
6x+6y=10y
y-x=0.5
6x=4y
y=0.5+x
6x=4[0.5+x]
y=0.5+x
6x=2+4x
y=0.5+x
2x=2/;2
y=0.5+x
x=1
y=0.5+1
x=1
y=1.5
2]
x/2=3/y/x6
x+2.5=y
3x=2y
x+2.5=y/ x[-3]
3x=2y
-3x-7.5=-3y
5y=7.5/;5
y=1,5
y=1,5
x=-2,5+1,5
y=1,5
x=-1
PowodZenia ;PP