whalesrawesome whalesrawesome
  • 21-02-2018
  • Mathematics
contestada

​​5x−4y=−10
​−4x+5y=8
​​Solve System of equations

Respuesta :

aliford523
aliford523 aliford523
  • 21-02-2018
5y = 4x + 8 and y = 4x/5 + 8/5
Answer Link
Banabanana
Banabanana Banabanana
  • 21-02-2018
   {5x−4y=−10  ⇒ 5x = 4y-10  ⇒  x=(4y-10)/5  ⇒  x = 0.8y - 2
​   {-4x+5y=8

-4(0.8y-2) + 5y = 8
-3.2y + 8 + 5y = 8
1.8y = 8 - 8
1.8y = 0
y = 0

5x−4·0=−10
5x = -10
x = -10/5
x = -2

Your answer is (-2, 0)
Answer Link

Otras preguntas

Use elimination to solve the system of equations
what is -43682189+-9273582
When onion cells are placed in a hypertonic solution, the red pigmented area of the cell.. A) increases B) decreases C) increases then decreases D) does not ch
Why water is polar, oil is non-polar?
hello:) how is the landform between the pacific plate and the Antarctic plate formed?
A meteor is falling towards the earth. If the mass and the radius of the earth are 6×10^24kg and 6.4×10^3km respectively,find the height of the meteor from the
En Busca Del Monstruo​
A 1.0 kg block is pushed 2.0 m at a constant velocity up a vertical wall by a constant force applied at an angle of 29.0 ◦ with the horizontal, as shown in the
if |4x - y =1 |3x +2y = 20 then x – y is:A) - 5;b) 2;B) 7;D) 5. with explanation pls​
Would my answer be c or a