SOLUTION: Solve each system by the substitution method. X+6y=-2 5x-20y=5

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Question 398155: Solve each system by the substitution method.
X+6y=-2
5x-20y=5
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!


Hi

Solving by the substitution method

x+6y=-2  OR x = -6y-2

5x - 20y = 5

5(-6y-2)  - 20y = 5

 -30y -10 - 20y = 5

  -50y -10 = 5

   -50y = 15

      y = 15/-50 = -3/10  and

      x = -2/10 = -1/5      (x = 18/10 - 20/10 )



CHECKING our Answer***

5x - 20y = 5

 5*(-1/5)-20*(-3/10) = -1 + 6 = 5