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anonymous

  • one year ago

3x-9y=-12 6x+20y=-62

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  1. anonymous
    • one year ago
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    3x-9y=-12 6x+20y=-62 ______________ now multiply the first equation by -2 (only the first equation -6x and 6x cancel out so now you are left with +18y=24 +20y=-62 ------------- now simplify

  2. anonymous
    • one year ago
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    just think of it as an addition problem like |dw:1437842739602:dw|

  3. anonymous
    • one year ago
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    do you get what I am saying ? @sherlocked1270

  4. anonymous
    • one year ago
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    well I know how to do a regular problem where the y values are the same but the y values are different this time

  5. anonymous
    • one year ago
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    @Nnesha

  6. anonymous
    • one year ago
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    that's why you multiply the first equation by -2 to make the x values the same and once you found the y values you can substitute in and you both values

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