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\left. \begin{array} { l } { \text { If } 11 m - 8 n = 6 m + 5 n , \text { find the value of } \frac { 2 m + 5 n } { 2 m - 5 n } } \\ { \text { ution: } } \end{array} \right. |
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Answer» 11m-6m = 8n+5n 5m = 13n 2m = 26n/5 2m+5n/2m-5n =( 26n/5 + 5n)/( 26n/5 - 5n) = 26n+25n/26n-25n = 51n/n = 51 |
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