bigfella558 bigfella558

03-07-2017
Mathematics

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What is the first step in solving this system of equations? 2x – 5y = 7 3x + 7y = –3

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Аноним Аноним

03-07-2017

Multiplying equation by-
2x-5y=1....[*3]
-3x+7y=-3..[*2]

Adding both equations after multiplication,we get-
6x - 15y = 3
-6x + 14y =-6

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y = -3
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playerawesome1 playerawesome1

03-07-2017

The first step will be to multiply the equation 2x -5y =7 by -3 and multiply the equation 3x + 7y = -3 by 2.
Your new equations will be -6x + 15y = -21.
6x + 14y = -6

Answer Link

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