2x+3y=-5 3x-5y=21 The value of y that satisfies the system of the equations above is A) 2 B)7 C) -3 D)There is no solution

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asked Mar 1, 2018 160k views

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Muhammad Fahad · Answer 1 · 2018-03-05T14:22:32+0000

You have to find a way to eliminate either x and y. We'll eliminate x:

2x + 3y = -5
3x - 5y = 21

2x*3 + 3y*3 = -5*3
3x*-2 + -5y*-2 = 21*-2

6x + 9y = -15
-6x + 10y = -42

19y = -57

y = -3

2x+3y=-5 3x-5y=21 The value of y that satisfies the system of the equations above is A) 2 B)7 C) -3 D)There is no solution

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