For the following system, use the second equation to make a substitution for y in the first equation. 2 x + y = 5 y + 3 = 2 x

2 x + 2 x - 3 = 5

2 x + 3 - 2 x = 5

2 x + 2 x + 3 = 5

Identify the polygon using as many names as possible

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