paytonbrown447 paytonbrown447
  • 24-01-2022
  • Mathematics
contestada

Use elimination using multiplication to solve 2x-y=-1
3x-2y=1

Respuesta :

semsee45
semsee45 semsee45
  • 24-01-2022

Answer:

x = -3 and y = -5

Step-by-step explanation:

2x - y = -1  ⇒  y = 2x + 1

Substitute this into  3x - 2y = 1 to solve for x:

3x - 2(2x + 1 ) = 1  ⇒  3x - 4x - 2 = 1  ⇒  -x = 3  ⇒  x = -3

Now sub the value you found for x into y = 2x + 1 to find y:

y = 2(-3) + 1 = -5

So x = -3 and y = -5

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