aliza2006
aliza2006 aliza2006
  • 11-03-2020
  • Mathematics
contestada

4x + 2y = 6
-x + 2y = -4

Respuesta :

dktorsergey
dktorsergey dktorsergey
  • 11-03-2020

Answer:

x = 2 and y = -1

Step-by-step explanation:

4x + 2y = 6     -------(i)

-x + 2y = -4     -------(ii)

subtracting (ii) from (i),

4x - (-x) + 2y - 2y = 6 - (-4)

5x = 10

∴, x = 2

Also, 4x + 2y = 6

4(2) + 2y = 6

8 + 2y = 6

2y = -2

∴, y = -1

Hence, the value of x = 2 and y = -1.

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