carolcaruso71
carolcaruso71 carolcaruso71
  • 14-04-2018
  • Mathematics
contestada

What is the value of y in the following stystem?

y= 3x-5
6x+3y=15

y=?

Respuesta :

jelkhechen86
jelkhechen86 jelkhechen86
  • 14-04-2018
Answer: y=1

replace y in the second equation you get x
then replace x in anh equation and you'd get get y
Answer Link
Supernova
Supernova Supernova
  • 14-04-2018
Take y = 3x - 5 and plug it into the equation below.
6x + 3(3x - 5) = 15. Solve for x.
6x + 9x - 15 = 15
15x = 30
x = 2
Now plug x back into the equation y = 3x - 5.
y = 3(2) - 5.
y = 6 - 5 
y = 1
Answer Link

Otras preguntas

What property is 87 times 3 equals 3 times 87?
which of the following is correct the product of 3/4 and 7 eighths listen
Choose the correct vocabulary word that matches the term. a student raising his hand el pupitre el estudiante la regla la escuela
Arnoldo needs to go to houston, it is 400 miles away, he currently has 8 gallons of gas in his car. his car gets an average of 30 miles per gallon. how much mor
the number of terms in the expression 3x-1 is what?
Do questions 10 and 12 plzzzz I NEED HELP PLZZZ
There were 12,351 visitors to a history center last year. What is this number rounded to the nearest hundred
How is th shape and size of a cell related to its function?
which wife of a founding father pleaded that he and his colleagues consider the rights of women when creating the new government? a. sarah franklin b. dolly mad
what is the digestion system?