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 Should I Know About Nigeria?
What is 3y = 15x - 12 in y = mx + b form ?
eight Bluefin tuna comprise 5% of the total tuna catch. How many tuna were caught in total?
what are at least 5 general PowerPoint guidelines that's you find useful and provide an example of how you would use each in real life setting
Does a scalene always have to have unequal sides?
What Is the Richest Country in the World?
Which statement accurately describes the Battle of Marathon?   A. Athens fought alone against Darius's army and decisively defeated the Pers
what are ten american triebs
Solve the equation: -5/4n  = 40My answer choices are: A: n = -50, B: n = -32, C: n = 32, D: n = 50
which geographic feature most aided england during the industrial revolution?