Mathematics, 14.02.2020 05:29, lightning1157blaze

Consider the following system with the solution: 2x+y=5 equation 2 of the system: x-2y= -5 prove that replacing the first equation with the sum of that equation and a multiple of the other produces a system with the same solution

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Consider the following system with the solution: 2x+y=5 equation 2 of the system: x-2y= -5 prove tha...