Respuesta :

Answer:

1. y=5-2x

2. -y=5-2x

3. [tex] \frac{5 - x}{2} [/tex]

Step-by-step explanation:

1. 2x+y=5

y=5-2x

2. 2x-y=5

-y=5-2x

3. x+2y=5

2y=5-x

[tex] \frac{5 - x}{2} [/tex]

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