rere12705 rere12705

24-10-2020
Mathematics

contestada

1) y = 2x + 4
y=-6x - 4

Respuesta :

offkeyelephant offkeyelephant

24-10-2020

Answer:

x=-1 y=2

Step-by-step explanation:

substitution

y = 2x + 4

y=-6x - 4

(-6x - 4)=2x+4

-6x-4=2x+4

begin to isolate x

add 6x to both sides, minus 4 from both sides

-8=8x

x=-1

Solve for y by plugging in x

y=2(-1)+4

y=-2+4

y=2

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