Muszę to mieć na jutro POMOCY.! od razu napiszcie mi jak to się robi ; **
a)
b)
c)
x+y=12/*-2
2x-3y=-11
-2x-2y=-24
-5y=-35/-5y= 7
x+7=12y=7x= 12-7
y=7
x=5b)2x+3y=8
-3x+y=-1/*-3
2x+3y=8
9x-3y=3
11x=11/11x=1
2+3y=8x=1y= 2
c) 5x-3y=15
x-y=1/*-35x-3y=15
-3x+3y=-32x=12/2
x= 6
-18+3y=-3x=6
y= 5
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a)
x+y=12/*-2
2x-3y=-11
-2x-2y=-24
2x-3y=-11
-5y=-35/-5
y= 7
x+7=12
y=7
x= 12-7
y=7
x=5
b)2x+3y=8
-3x+y=-1/*-3
2x+3y=8
9x-3y=3
11x=11/11
x=1
2+3y=8
x=1
y= 2
c) 5x-3y=15
x-y=1/*-3
5x-3y=15
-3x+3y=-3
2x=12/2
x= 6
-18+3y=-3
x=6
y= 5