brenda2398 brenda2398
  • 18-09-2019
  • Mathematics
contestada

-4x + y = 9
- 4x +9y= 17
Solve by elimination

Respuesta :

lolmandude45
lolmandude45 lolmandude45
  • 18-09-2019

Answer:

(x , y) = (-2 , 1)

Step-by-step explanation:

multiply both sides by -1

sum the equations vertically to eliminate at least one variable

divide both sides by -8

substitute the value of y into the equation

now solve  for x using that y=1

Answer Link

Otras preguntas

solve the equation b - 7 - 6 = 15 + 5b
Help me quick please I can’t see link so real people answer this
A triangle has side lengths of 3 meters, 2 meters, and 3 meters. What kind of triangle is it?
Examine the following diagram BI 75 32 3 26592 3 D 75 32" 2859 E © 2019 StrongMind Created using GeoGebra If AABC 4AADE, what is the length of AE? 07 04 6 03
The Supreme Court building is located in New York O True O False
URGENT PLEASE HELPPPP!!! THANK YOU
Which scenario did not include a chemical change?
What achievements were made by Muslims in science and mathematics
For an integer N greater than 1, what is the least value of N such that the product N · 144 ends in the three digit string 144?
Does anyone know what episode Hinata threatens useless sakura?