jcookielover34 jcookielover34
  • 30-11-2016
  • Mathematics
contestada

2x+y=-9
-3x+11=y whathe is the answer

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Spartiate Spartiate
  • 30-11-2016
[ 2x + y = -9 ] x -3
[- 3x +11= y ] x 2

-6x -3y = 27
-6x + 22 = 2y

-6x +27 = 3y
-6x +22 = 2y

5 = y

-6x -3x5 = 27
-6x -15 = 27
-6x = 42
-x = 42/6
-x = 7
x = -7

answer

x = -7
y = 5




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