jcorley0534
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What is the solution to this system of equations?

x − 2y = 15

2x + 4y = -18



A.x = 1, y = -6




B.x = 1, y = -7




C.x = 3, y = -6




E.x = 3, y = -7

Verified Answer :

morgeron

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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