mathstudent0
mathstudent0 mathstudent0
  • 02-04-2017
  • Mathematics
contestada

5x + 2y = 8
x + y = 4
If you want to solve the system of equations by addition, which of the following could you do?

Respuesta :

Shailza Shailza
  • 02-04-2017
Multiply the equation x+y =4 by -5
The resultant would be- 
-5x -5y = -20
Adding this with 5x +2y =8
Then, the resulting would be, 
-3y = -12
∴ y=4
and x=4-4 =0
Answer Link
sassyqueensavage
sassyqueensavage sassyqueensavage
  • 16-12-2020

Answer:

ita a

Step-by-step explanation:

Answer Link

Otras preguntas

The band boosters collected $2400 from the sale of hamburgers and hotdogs.The amount earned from hamburgers and hotdogs were equal.A hamburger sold for three do
Show the Distributive property of division over addition and subtraction plz!
What are the x-coordinates of the solutions to this system of equations? x2 + y2 = 16 y = x + 4
Which formula can be used to describe the sequence 640,160,40,10
which element donates hydrogen ions when dissolved in water?
Because I want to manicure has a negative and it displays
explain the similarities between monopolistic competition and oligopoly.
How does the supreme court check the powers of congress?
0.8 divided by 51.44
Do you know which of these four countries does not celebrate christmas?