emilyroserivera09
emilyroserivera09 emilyroserivera09
  • 17-08-2020
  • Mathematics
contestada

What is the value of x + y

What is the value of x y class=

Respuesta :

WojtekR
WojtekR WojtekR
  • 17-08-2020

[tex]\begin{cases}2x+3y=12\\2x-2y=2\end{cases}\\ --------(-)\\2x-2x+3y-(-2y)=12-2\\\\5y=10\quad|:5\\\\\boxed{y=2}\\\\\\2x-2y=2\quad|:2\\\\x-y=1\\\\x=1+y\\\\x=1+2\\\\\boxed{x=3}[/tex]

so:

x + y = 5

Answer Link

Otras preguntas

What is greater 2/3 or 7/8?
Which of these components establishes pace in poetry?A. rhyme B. rhythm C. imagery D. layout
What purpose do the historical anecdotes serve in James Baldwin's "For Want of a Horseshoe Nail" and Robert E. Lee's "Letter to His Son"? a. They serve as atte
What were the two main items traded in Ghana? a. gold and salt b. silk and salt c. iron and silk d. gold and silk
If Nellie Newton pushes an object with twice the force for twice the distance, she does A. twice the work. B. the same work. C. four times the work.
write as ratio of dogs and cats 16 dogs and 18 cats
What can be used in a senate to stop a bill from being passed
tall Which of the is equal to 64 inches 10.1) @ 4 fl © 6 ft
78% of 3 feet is inches.
Which statement accurately describes the relationship between the brain and addiction?A. Normal activities produce heightened responses once receptors are reduc