Asked by jackie

(a+7)/(a-4)+(9-5a)/(a-4)
i got 6+40/a-4
Answered by Damon
a - 5a = - 4 a
7 + 9 = 16
so
(16-4a)/ (a-4)
-4 (a-4) / (a-4)
is
-4
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