danielapaguada3 danielapaguada3
  • 22-10-2021
  • Mathematics
contestada

2x+7y=3 and x=-4y with substitution ?

Respuesta :

randomperson77
randomperson77 randomperson77
  • 22-10-2021

Answer:

x=12

y=-3

Step-by-step explanation:

Because we already know what the value of x, we can use that value, -4y, to substitute it into the equation 2x+7y=3.

2(-4y)+7y=3   Simplify.

-8y+7y=3

-y=3                Divide both sides by -1 (to make y positive).

y=-3

Now, we can substitute y into the other equation, x=-4y.

x=-4(-3)   Simplify.

x=12

I really hope this helps!! Have a great day ❤

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