benstelly2830 benstelly2830
  • 02-05-2017
  • Mathematics
contestada

For the following system, use the second equation to make a substitution for y in the first equation. 2x + y = 5 y + 3 = 2x

Respuesta :

moshift1 moshift1
  • 02-05-2017
If y equals 2x - 3 in the second equation, than subsitute it in for y in the first.
2x + 2x - 3 = 5
4x - 3 = 5
4x = 8
x=2
2(2) + y = 5
x = 2 and y = 1

Answer Link
mesqueda85
mesqueda85 mesqueda85
  • 02-05-2017
For the second equation, y=2x-3. Substituting this in, you get 2x+2x-3=5. Add the 2x's (4x), and add 3 to the 5 (8). You should get 4x=8, which will give you x=2.  
Answer Link

Otras preguntas

She considers the vagaries of sports, the happenstance of El Líder, a star pitcher in his youth, narrowly missing a baseball career in America. His wicked curve
Do you believe that justice is blind? Why or why not?
Which type of password would be considered secure?
the town of lantana needs 14,000 for a new playground. Lantana elementary school raised 5,358, Lantana middle school raised 2,834 and Lantana high school rais
What is 10,825 ÷ 17 I really need help and I'll give points to the 1st person to answer correctly :)
All three Colonies believed in the importance of _______________.
What thinkers influenced medieval Scholasticism? Select all that apply. Aristotle Descartes Galileo Saint Augustine
There it's a better picture
Which of the following scenarios would most likely result in the increase of a country’s total fertility rate
n this unit, who does one poem describe as the person the colonies asked to "do the deed" when they decided that they "could and should and would be freed"? A