2(x+2)+3y=-y -45(x-1)=x-3(x+y)-1
3(2+y)= -2x -12(x+1)=2 -10y
rozwiąz ukłądy równan metoda podstawiania
2x+4+3y=-y-4
5x-5=x-3x+y-1
2x=4y /:2
5x-5=2x+y-1
x=2y
3(2y)-5=2(2y)+y-1
6y-5=4y+y-1
y=4
x=8
6+3y=-2x-1
2x+2=2-10y
2x=-10y /:2
x=-5y
6+3y=-2(-5y)-1
6+3y=10y-1
7y=7 /:7
y=1
x=-5
mam nadzieje, że dobrze ;D
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2x+4+3y=-y-4
5x-5=x-3x+y-1
2x=4y /:2
5x-5=2x+y-1
x=2y
3(2y)-5=2(2y)+y-1
x=2y
6y-5=4y+y-1
x=2y
y=4
x=8
y=4
6+3y=-2x-1
2x+2=2-10y
6+3y=-2x-1
2x=-10y /:2
6+3y=-2x-1
x=-5y
6+3y=-2(-5y)-1
x=-5y
6+3y=10y-1
x=-5y
7y=7 /:7
x=-5y
y=1
x=-5
mam nadzieje, że dobrze ;D