What is the solution to this system of equations?

1 answer:

6 0

Use the property of substitution to solve:
2 ( x - 2y = 15) ... 2x - 4y = 30
   2x + 4y = -18

subtract..... 4x = 12
divide by 4    x =3 place into original equation 3 - 2y = 15
   -2y = 12
   y = -6
(3, -6)

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