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

User Riffraff
by
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2 Answers

3 votes

Answer:

B. Add the first equation to the second equation.

Explanation:

I just took the test

User Vitor Arbex
by
7.7k points
3 votes

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

-------------------

5x = 10

User HEKTO
by
7.7k points

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