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What is the first step to solve the following system of equations using substitution?I'm x−y=72
x−y=17

1. Solve the first equation for x.
2.Divide the second equation by 2.
3.Multiply the first equation by 2.
4.Add the two equations together.

Respuesta :

callie333

Answer:

well how you put it together but the answer will b 2x-2y=89

Step-by-step explanation:

you have 2 x and 2 y and then 72 and 17

Answer: solve the first equation for x

Step-by-step explanation:

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