MayaCrystal
MayaCrystal MayaCrystal
  • 17-06-2019
  • Mathematics
contestada

How many solutions does this system have?

y=5x-1
y=-3x+7

Respuesta :

luisejr77
luisejr77 luisejr77
  • 17-06-2019

Answer:

One solution

Step-by-step explanation:

We have the system

[tex]y=5x-1\\y=-3x+7[/tex]

To solve the system, equate both equations and solve for the variable x.

[tex]5x-1= -3x+7\\\\5x + 3x = 7 +1\\\\8x = 8\\\\x=1[/tex]

Now substitute the value of x in any of the two equations and solve for the variable y.

[tex]y=5(1)-1[/tex]

[tex]y=4[/tex]

Finally the system of equations has one solution

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