jannateafrinjeny10 jannateafrinjeny10
  • 11-11-2020
  • Mathematics
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8x+3y=14,2x+y=4. PLz solve this it’s emergency

Respuesta :

Katharinescott218866
Katharinescott218866 Katharinescott218866
  • 11-11-2020

Answer:

x=1, y=2

Step-by-step explanation:

1) 8x+3y=14 Original system of linear 2d equations

   2x+y=4

2)     8x+3y=14

   -4 (2x+y) =-4(4)   Multiply second equation by negative four.

3)    8x+3y=14

  +  -8x-4y=-16   Add equations, eliminating x terms

4) -y=-2

     y=2 solve for y

5) 8x+3(2)=14 Substitute solution for y to solve for x

    8x=14-6

    8x=8

       x=1

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