pgerrieg0 pgerrieg0
  • 20-06-2020
  • Mathematics
contestada

1. A system of equations is shown below. Find the solution by using substitution.
y = 3x - 2
y = x + 2

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RyGuy033
RyGuy033 RyGuy033
  • 20-06-2020

Answer:

x = 2

y = 4

or (2 , 4)

Step-by-step explanation:

Since both equations are equal to y we can substitute one of the equations to fill in the spot of y so that both equations are equal to each other with no y variable.

[tex]3x-2 = x+2\\[/tex]

Now we can solve x.

[tex]3x= x+4\\[/tex]

[tex]2x = 4\\[/tex]

x = 2

Now that we have solved for one variable we can plug this back into either equation and solve for y.

[tex]y = 2 + 2\\[/tex]

y = 4

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