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30 July, 17:32

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?

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  1. 30 July, 20:13
    0
    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
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