gabriel200291 gabriel200291
  • 19-04-2020
  • Mathematics
contestada

What is the solution of a system defined by 5x + 2y = 30 and -5x + 4y = 0?

Respuesta :

wegnerkolmp2741o
wegnerkolmp2741o wegnerkolmp2741o
  • 19-04-2020

Answer:

x=4 y=5

Step-by-step explanation:

5x + 2y = 30 and -5x + 4y = 0

Solve by adding the two equations together to eliminate x

5x + 2y = 30

-5x + 4y = 0

----------------------

   6y = 30

Divide each side by 6

6y/6 = 30/6

y =5

Now we solve for x

5x + 2y = 30

5x +2(5) = 30

5x+10 = 30

Subtract 10 from each side

5x+10-10 = 30-10

5x = 20

Divide each side by 5

5x/5 = 20/5

x = 4

Answer Link

Otras preguntas

how can paleontologists help us understand the past
Which of the objects is living or nonliving: Bacteria, virus, moss, you, a lemon seed, the air, bread, lettuce and rocks?
why did foreign powers treat the US government under the Articles of Confederation with scorn?
Why aren't all minerals gemstones?
Why aren't all minerals gemstones?
Why aren't all minerals gemstones?
Which of the objects is living or nonliving: Bacteria, virus, moss, you, a lemon seed, the air, bread, lettuce and rocks?
Find the additive inverse of 18/23
Who was the boy who  became king at the age of 9?
why did foreign powers treat the US government under the Articles of Confederation with scorn?