Ответ:
1. x-y=2
3x-2y=8
x=2+y
6+3y-2y=8
6+y=8
x=2+2=4
y=2
2. 2x+y=2
6x-2y=1
y=2-2x
6x-4-4x=1
2x-4=1
y=2-5
x=2,5
y=-3
3. x+6y=4
2x-3y=3
x=4-6y
8-12y-3y=3
8-9y=3
9y=11
x=4- 4[tex]\frac{10}{11}[/tex]
y=[tex]\frac{9}{11\\}[/tex]
x=- [tex]\frac{10}{11}[/tex]
Объяснение:
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Answers & Comments
Ответ:
1. x-y=2
3x-2y=8
x=2+y
6+3y-2y=8
x=2+y
6+y=8
x=2+2=4
y=2
2. 2x+y=2
6x-2y=1
y=2-2x
6x-4-4x=1
y=2-2x
2x-4=1
y=2-5
x=2,5
y=-3
x=2,5
3. x+6y=4
2x-3y=3
x=4-6y
8-12y-3y=3
x=4-6y
8-9y=3
x=4-6y
9y=11
x=4- 4[tex]\frac{10}{11}[/tex]
y=[tex]\frac{9}{11\\}[/tex]
x=- [tex]\frac{10}{11}[/tex]
y=[tex]\frac{9}{11\\}[/tex]
Объяснение: