Question 404713
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Hi
Solving the system of two linear equations by elimination
12x -14y = -8
-8x -14y = 52

12x -14y = -8
8x + 14y = -52   |subtracting 2nd from 1st equation to eliminate y
 20x = -60
      x = -3   
solving for y by substituting x = -3
12x -14y = -8
-36 - 14y = -8
     -28 = 14y
      y = -2

CHECKING our Answer***
 -36 - (-28) = -8   |1st equation
 24 + 28 = 52       |2nd equation