csallee0
csallee0 csallee0
  • 07-01-2019
  • Mathematics
contestada

4x+2y=10
3x+2y=6

Solve the system algebraically.

Respuesta :

rejkjavik rejkjavik
  • 07-01-2019

Answer:

[tex]x=4[/tex]

[tex]y=-3[/tex]

Step-by-step explanation:

we are given system of equations as

[tex]4x+2y=10[/tex]

[tex]3x+2y=6[/tex]

we can subtract both equations

and we get

[tex]4x+2y-(3x+2y)=10-6[/tex]

[tex]4x+2y-3x-2y=10-6[/tex]

[tex]x=4[/tex]

now, we can find y

we can plug x=4 into anyone equation

[tex]4\times 4+2y=10[/tex]

[tex]16+2y=10[/tex]

[tex]16+2y-16=10-16[/tex]

[tex]2y=-6[/tex]

[tex]y=-3[/tex]

so, we get solution as

[tex]x=4[/tex]

[tex]y=-3[/tex]


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