Use substitution to solve the linear system of equations. 5x-y=15 -10x+2y=-30 no solution(-15, -6)(-3,10)infinitely many solutions

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asked Mar 22, 2018 56.7k views

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Mattravel · Answer 1 · 2018-03-25T18:18:46+0000

5x - y = 15 (1)
-10x+2y=-30 (2)

multiply (1) by 2

10x - 2y = 30
-10x + 2y = -30 (2)
---------------------------add
0 = 0

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infinitely many solutions

Use substitution to solve the linear system of equations. 5x-y=15 -10x+2y=-30 no solution(-15, -6)(-3,10)infinitely many solutions

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