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

what subgenre of rock music is designed for performance in large venues with large audiences?
Help ASAP[tex] \frac{x - 3}{5} = \frac{x + 5}{3} [/tex]Find the value of x​
dry ice is the solid form of what chemical compound?
how long can you keep cooked turkey in the refrigerator
What is the range of f(x) = -6.2%? y 5 A. y< 0 O B. y< 1
Describe the two dimensions of the motion of an object in a circle due to centripetal force. Explain why putting them together results in circular motion g
What is the answer to evaluate. 3³=___________________ Anyone Know
Define Liturgy What is Liturgy? ​
How to take the derivative of a function with x and y in it.
what does it show you or help you to understand about this time ?