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2 votes
If you were to solve the following system of substitution 2x+6y+9

3x-12y=15
what would be the best variable to solve for and from what equation?

User Kaikuchn
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2 Answers

5 votes

Answer:

x in the second equation.

Explanation:

This is the answer because 15 is a multiple of 3! I hope this helped! <3

User Miquelvir
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6.1k points
1 vote
x in the equation 3x-12y=15, because once you at 12y to the other side, 12 and 15 are both easily divided by 3
User Lwe
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