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mm3591

  • one year ago

Combine 12x+6y+120 and 4x+y=30 to eliminate one of the variables and then solve for the other

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  1. mm3591
    • one year ago
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    16x+7y=150

  2. mm3591
    • one year ago
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    how?

  3. anonymous
    • one year ago
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    Hint: Multiply both sides of 4x+y=30 by -3 and then add the equations together.

  4. anonymous
    • one year ago
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    12x+6y=120 -12x-3y=-90

  5. anonymous
    • one year ago
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    Looks like a typo error. 12x+6y+120 should be 12x+6y=120

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