Question

Which is the best first step and explanation for solving this system of equations 3x + y = 7 x + y = 3

Answer 1

Answer: Add the two equations together to eliminate y

Explanation:

X+y=3

4x-y=7

I would use elimination since one equation has +y and one equation has -y

Add the two equations together

X+y=3

4x-y=7

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5x = 10