mariana4274
mariana4274 mariana4274
  • 02-03-2021
  • Mathematics
contestada

What is the solution to this system of linear equations?
y - 4x=7
2y + 4x = 2
(3,1)
(1,3)
3.-1)
(-1,3)
​

Respuesta :

anikakinnear
anikakinnear anikakinnear
  • 02-03-2021

[tex]y=7+4x\\2(7+4x) +4x=2\\14+8x+4x=2\\14+12x=2\\12x=-12\\x=-1\\\\y-4(-1)=7\\y+4=7\\y=3[/tex]

(-1,3)

Answer Link

Otras preguntas

Robert is playing a game of cards with his family. If he randomly picks a card from a standard 52-card deck, the probability of drawing a heart on the first dra
Clauses that cannot stand alone and are not complete thoughts are called _____.
A(n) ____ primary is one in which voters get the ballot of their announced party.
What was Muhammad's message?what rules for daily living did Muhammad teach?
What is one reason that andrew jackson issued the specie circular in july 1836, requiring payment in gold or silver for all public lands?
What trimester does the fingers and toes develope?
what system of government do the regional governments tell the central government what to do?
Are all right? I tried and it didn't work.
Can I get some help please?
mrs. wilson changes her dress. what happens to her demeanor when she changes into the cocktail dress?