kaitlynfowler56 kaitlynfowler56
  • 11-08-2020
  • Mathematics
contestada

Solve 2x+2y=6 and 3x-2y=11

Respuesta :

zarampa
zarampa zarampa
  • 15-08-2020

Answer:

x = 17/5

y = -2/5

Step-by-step explanation:

2x + 2y = 6

3x - 2y = 11

sum both equations results

5x + 0 = 17

x = 17/5

2x + 2y = 6

2*17/5 + 2y = 6

34/5 + 2y = 6

2y = 6 - 34/5

2y = 30/5 - 34/5

2y = -4/5

y = (-4/5)/2

y = -2/5

verify:

3x - 2y = 11

3*17/5 - 2*-2/5 = 11

51/5 + 4/5 = 55/5

51 + 4 = 55

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