chelseagarcia12 chelseagarcia12
  • 14-12-2017
  • Mathematics
contestada

How many solutions does this linear system have?

How many solutions does this linear system have class=

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tknoxx35
tknoxx35 tknoxx35
  • 14-12-2017
it is no solution, bc the answer is (0,0)
Answer Link
lisboa lisboa
  • 05-07-2019

Answer:

one solution (0,-1)

Step-by-step explanation:

[tex]y=5x-1[/tex]

[tex]-15x-3y=3[/tex]

LEts solve for x  and y, Substitute  5x-1 for y in second equation

[tex]-15x-3y=3[/tex]

[tex]-15x-3(5x-1)=3[/tex]

[tex]-15x-15x+3=3[/tex]

Combine like terms

[tex]-30x+3=3[/tex]

Subtract 3 on both sides

[tex]-30x=0[/tex]

Divide both sides by -30

[tex]x=0[/tex]

Now plug in 0 for x in first equation

[tex]y=5x-1[/tex]

[tex]y=5(0)-1=-1[/tex]

So one solution (0,-1)

Answer Link

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