Rozwiąż metody równań metodą podstawiania.
3x+y=-5
2x-3y=-7
-x+3y=-7
3x+5y=7
y=-5-3x
2x-3[-5-3x]=-7
2x+15+9x=-7
11x=-22/11
x=-2
y=-5-3*-2
y=1
-x+3y=-7/-1
x=7+3y
3[7+3y]+5y=7
21+9y+5y=7
14y=7-21=14
14y=14/14=1
x=7+3*1=10
x=10
2x-3(-5-3x)=-7
11x=-7-15
17x=-22
y=-5+6
3(7+3y)+5y=7
14y=7-21
14y=14
x=7+3
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3x+y=-5
2x-3y=-7
y=-5-3x
2x-3[-5-3x]=-7
y=-5-3x
2x+15+9x=-7
y=-5-3x
11x=-22/11
y=-5-3x
x=-2
y=-5-3*-2
x=-2
y=1
-x+3y=-7/-1
3x+5y=7
x=7+3y
3[7+3y]+5y=7
x=7+3y
21+9y+5y=7
x=7+3y
14y=7-21=14
x=7+3y
14y=14/14=1
x=7+3*1=10
y=1
x=10
3x+y=-5
2x-3y=-7
y=-5-3x
2x-3(-5-3x)=-7
y=-5-3x
2x+15+9x=-7
y=-5-3x
11x=-7-15
y=-5-3x
17x=-22
y=-5-3x
x=-2
y=-5+6
x=-2
y=1
x=-2
-x+3y=-7
3x+5y=7
x=7+3y
3(7+3y)+5y=7
x=7+3y
21+9y+5y=7
x=7+3y
14y=7-21
x=7+3y
14y=14
x=7+3y
y=1
x=7+3
y=1
x=10
y=1