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blsea [12.9K]
3 years ago
7

. If 2n - 5m + 10 = 0, findi) m, when n=2 ii) n, when m=5​

Mathematics
1 answer:
bulgar [2K]3 years ago
5 0

Answer:

when n = 2; m = 2 \frac{4}{5}

when m=5;   n = 7\frac{1}{2}

Step-by-step explanation:

2n - 5m + 10 = 0

       <u>      -10     -10</u>

2n - 5m = -10

2(2) - 5m = -10

 4 - 5m = -10

 <u>-4            -4</u>

      <u>-5m</u> = <u>-14</u>

        -5       -5

           m = 2 \frac{4}{5}

2n - 5(5) = -10

2n - 25 = -10

<u>     +25     +25</u>

<u>2n</u> = <u>15</u>

2        2

   n = 7\frac{1}{2}

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