Question

Which is the best first step when solving the following system of equations? X+y=3 4x-y=7

Answer 1

B. Add the first equation to the second equation.

Explanation:

I just took the test

Answer 2

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