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If you were to solve following system by substitution what would be the best variable to solve for and from what equation? 2x+6y=9.

3x-12y=15

User Kuujinbo
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7 votes

Answer:

x, in the second equation

Explanation:

User Jgshawkey
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This is an odd question because it's a little subjective, but, for me, I would choose x from the second equation because you could simply add 12y to both sides, then divide by 3. It has the added benefit of not having any decimals/fractions, or negative values, which would be nice for substitution.
User Elirandav
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