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M-3mn+n+9 from 11m-7mn+2n-5 |
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Answer» 10m - 4MN + n - 14 Step-by-step explanation: 11m - 7MN + 2n - 5 minus m - 3mn + n + 9 11m - 7mn + 2n - 5 + (-)m - 3mn + n + 9 *Multiplying the second equation by a NEGATIVE so we can add instead of subtract* (Negative times a negative is a positive; a postive times a negative is a negative) 11m - 7mn + 2n - 5 + -m + 3mn - n - 9 10m - 4mn + n - 14 |
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