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How do you simplify $\frac{b + 8}{- b - 8}$ $(b+8)/(-b-8)$ ?

1 Answer

Alan P. · Konstantinos Michailidis

Jul 18, 2016

$\frac{b + 8}{- b - 8} = (- 1)$ $(b+8)/(-b-8)=color(red)(""(-1))$

Explanation:

$- b - 8 = (- 1) \times (b + 8)$ $-b-8=(-1)xx(b+8)$

therefore
$color(white)("XXX")(b+8)/(-b-8)=cancel((b+8))/((-1)xxcancel((b+8)))=1/(-1)=-1$

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