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Mathematics, 22.01.2021 01:10 jacobbecker99

When solving this system of equations using linear combination, what should you do first? -x+y=-1
2x+y=19

Multiply the first equation by 2

Add the two equations together

solve the first equation for y

multiply the first equation by 1

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When solving this system of equations using linear combination, what should you do first? -x+y=-1
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