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 ❤

Answer Link

Otras preguntas

1 x 1.0 - = 10 1 - 10 x 1.0
An elevator can carry 900 pounds of weight. A person weighing 116 pounds gets on the elevator. Write and solve an inequality to represent the remaining weight t
What are all the passing grades in letters and numbers? thank you!
How body responds when the body temperature increases
1. Why would most people want to live in an area with good farmland?
Which of the following is the correct sequence of the DIIRE value chain?
What is the domain of the function y=2 square root x-5.
Can someone help me please?? It’s due on thursday ❤️ (rotate picture if u can)
(no links) What were the environmental effects of the silk road?
WILL GIVE BRAINLIEST