NerdWannabe
NerdWannabe NerdWannabe
  • 19-08-2020
  • Mathematics
contestada

Solve for x and y simultaneous equations: 2x+y=10
-3x+y=-5

Respuesta :

Sueraiuka
Sueraiuka Sueraiuka
  • 19-08-2020

Step-by-step explanation:

Hey, there!

Given, equations are,

2x+y=10.............(i)

-3x+y= -5...........(ii)

From equation (i)

y=10- 2x...........(iii)

Putting the value of "y" from equation (iii) in equation (ii).

-3x+y= -5

-3x + (10-2x)= -5

-3x + 10-2x= -5

- 5x = -15

[tex]x = \frac{ - 15}{ - 5} [/tex]

Therefore, x= 3.

Now, putting the value of "x" in equation (iii).

y= 10- 2x

y= 10- 2×3

Therefore, y= 4.

Hope it helps...

Answer Link

Otras preguntas

Was their woman on Christopher Columbus's voyage to the new world?
what would you say about Nepal if you met an Australian friend somewhere?​
I need to know what formula to use in order to figure out the problems. You do not have to solve, I can do that. I just need a formula, and if you can steps to
how do I find out that a cartoon is biased​
que haces en las clases?I need a complete sentence.​
state the meaning or give another term for each underlined item below
Please help! I will mark as brainliest IF answer is right. <3
Thirty clowns are in clown car. If all of the clowns in the car are either happy clowns or sad clowns, all of the following are possible ratios of sad clowns to
Parker ate one-third the number of raisins Devan ate.Which variable expression represents the number of raisins Parker ate?3d[tex]\frac{d}{3}[/tex]d + 3[tex]\fr
HELP PLEASE. how to find the number of neutrons of an element without a given R.A.M.​