Mathematics, 14.07.2020 17:01 andria89

Which is the best first step when solving the following system of equations? x + y = 3. 4 x minus y = 7. 1) Multiply the first equation by 4. 2) Add the first equation to the second equation. 3) Multiply the second equation by Negative 1. 4) Subtract the second equation from the first equation.

Which is the best first step when solving the following system of equations? x + y = 3. 4 x minus y

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