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anonymous

  • one year ago

FAN, FAN TESTIMONIAL, AND MEDAL!!! Choose the equivalent system of linear equations that will produce the same solution as the one given below. 6x + 2y = -6 3x - 4y = -18 A) 12x + 4y = -12 15x = -30 B) 8x + 4y = -4 14x = -10 C) 6x - 8y = -36 -6y = -42 D) 6x - y = -15 3y = 9

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  1. Mertsj
    • one year ago
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    The first two choices show that y has been eliminated. Eliminate y and see if you get one of those answers. If not, move on to the last choices where x has been eliminated and see which one of those is correct.

  2. anonymous
    • one year ago
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    A and D are correct when I plug the values back in, so it must be one of those. @Mertsj

  3. Mertsj
    • one year ago
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    1. Multiply the first equation by 2 2. Add the result to the second equation. 3. Now you have eliminated y. 4. Is the result either choice A or choice B???

  4. anonymous
    • one year ago
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    It's A, right? @Mertsj

  5. Mertsj
    • one year ago
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    yes

  6. anonymous
    • one year ago
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    Thank you! You were right, I just submitted the test and got 100%!!!

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