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Help !!!

Solve by Addition or Subtraction

2y+3x=8

+ y-2x=-3

ManuelBautista2019  Sep 24, 2017
 #1
avatar+91153 
+2

2y + 3x = 8

1y - 2x = -3

 

Multiply the second equation through by -2 

 

2y + 3x  = 8

-2y + 4x  = 6      add these

 

       7x  =  14     diviede both sides by 7

         x  = 2

 

And using 1y - 2x = -3  to find y

 

1y  - 2(2)  = -3

y  - 4   = -3         add 4 to both sides

y =  1

 

 

 

cool cool cool

CPhill  Sep 24, 2017

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