jarwilsak jarwilsak
  • 28-05-2019
  • Mathematics
contestada

What is the solution to the system of equations below?
y= 4x+6 and Y= 2x-4
0 (-8, 2)
(-8,-1)
(8, 10)
(8, -10

Respuesta :

frika
frika frika
  • 28-05-2019

Answer:

(-5,-14)

Step-by-step explanation:

To find the solution of the system of two equations

[tex]\left\{\begin{array}{l}y=4x+6\\y=2x-4\end{array}\right.[/tex]

equate right sides of these two equations:

[tex]4x+6=2x-4[/tex]

Rewrite terms with x into the left side and without x into the right side:

[tex]4x-2x=-4-6\\ \\2x=-10\ [\text{divide by 2}]\\ \\x=-5[/tex]

Substitute x=-5 into the first equation:

[tex]y=4\cdot (-5)+6=-20+6=-14[/tex]

The solution is (-5,-14)

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