ren99
ren99
23-04-2018
Mathematics
contestada
Find the sum or difference
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Cowmilk
Cowmilk
23-04-2018
[tex] \frac{5a - 4 - 6a + 11}{ {a}^{2} - 6a - 7 } \\ \frac{ - a + 7}{ {a}^{2} - 6a - 7 } \\ \frac{ - (a - 7)}{(a - 7)(a + 1)} \\ \frac{ - 1}{a + 1} [/tex]
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