19-11-2020
Mathematics

contestada

y=-x-4
y=x

solve system of equations algebraically

Respuesta :

rebjin10705 rebjin10705

19-11-2020

Answer:

y=-2 x=-2

Step-by-step explanation:

y=-x-4

y=x

you can plug y in for x in the first equation by using substitution

y=-y-4

and then you solve for y

2y=-4

y=-2

so y equals -2. Since y=x, x also equals -2. Therefore

y=-2 x=-2

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