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If l is not equal to –3 or –4, then l/l + 4 + 3/l + 3 =

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If l is not equal to –3 or –4, then l/l + 4 + 3/l + 3 = [#permalink]  07 Jun 2017, 02:29
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If l is not equal to -3 or -4, then \frac{l}{l+4} + \frac{3}{l+3} =

A) 1

B) \frac{7}{l+4}

C) \frac{l+3}{2l+7}

D) \frac{3l}{(l+4)(l+3)}

E) \frac{l^2+6l+12}{(l+4)(l+3)}
[Reveal] Spoiler: OA

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Re: If l is not equal to –3 or –4, then l/l + 4 + 3/l + 3 = [#permalink]  27 Sep 2017, 07:36
This is pure algebra
\frac{l}{l+4}+\frac{3}{l+3}=\frac{l^2+3l+3l+12}{(l+4)(l+3)}=\frac{l^2+6l+12}{(l+4)(l+3)}

Re: If l is not equal to –3 or –4, then l/l + 4 + 3/l + 3 =   [#permalink] 27 Sep 2017, 07:36
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