Mathematics, 05.01.2022 05:20 leannamat2106

What is the first step to solving the following system of equations using substitution? x-y=7 2x-y=17 please help
Solve the first equation for x.

Multiply the first equation by 2.

Add the two equations together.

Divide the second equation by 2.

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What is the first step to solving the following system of equations using substitution? x-y=7 2x-y=1...