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10 May, 05:07

If you were to solve the following system by substitution, what would be the best variable to solve for and from what equation? 3x+6y=9 2x-10y=13 a) x in first equation b) x in second equation << i think its this just making sure c) y in first equation d) y in second equation

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  1. 10 May, 05:39
    0
    The answer is x, in the first equation.
  2. 10 May, 08:34
    0
    I think the correct answer is a) x in first equation

    Look at the first equation:

    3x + 6y = 9

    You can divide both sides by 3 to get:

    x + 2y = 3

    And then solve it for x:

    x = 3 - 2y

    Now you can substitute x to 3-2y in the second equation

    Next you will solve the second equation for y
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