Seudónimo Seudónimo
  • 13-09-2018
  • Mathematics
contestada

solve the system using substitution.
-5x+y=4
4x-4y=16
a-(-4,0)
b-(1,4)
c-(0,-4)
d-(4,1)

Respuesta :

grujan50
grujan50 grujan50
  • 13-09-2018

Substitution method is one of the ways to solve this system.

-5x+y=4 and 4x-4y=16.

First we will divide the second equation with number 4 and get

x-y=4 => x=y+4 than we will replace x in the first equation

-5(y+4)+y=4 => -5y-20+y=4 => -4y=4+20 => -4y=24 => y=-6

x-(-6))=4 => x+6=4 => x=4-6=-2    (x,y)=(-2,-6)

Good luck!!!

Answer Link
segesma1699c segesma1699c
  • 14-11-2020

Answer:

I believe it is (0,-4)

Step-by-step explanation:

good luck!

Answer Link

Otras preguntas

The most commonly occurring cancer of the female reproductive tract is _____ cancer.
What is the difference of squares of twenty and thirteen
What is the area of a rectangle with vertices at ​ (−6, 3) ​, ​ (−3, 6) ​ , (1, 2) , and (−2, −1) ?
(−5k ​3 ​​ −6k+1)+(−6k ​2 ​​ +5k)
The most important purpose of irrigation was to
If 12 poster boards are cut into 1/6 pieces, how many pieces of poster board are there?
Which describes a nuclear family? the step-brothers and sisters of parents who have been married before a couple and their children living together in one house
Which event marks the climax of the necklace. A. When mathilde receives the information. B. When Mathilde borrows the necklace C. During the party D. When Ma
What is the probability that for exactly two calls the lines are occupied? round your answer to four decimal places (e.g. 98.7654)?
how should you use a heart rate monitor?