If $m = ab + c$ and $n = ad + c$, then $n - m = $... | Free GMAT Practice Question | GMAT Panda

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If m = ab + c and n = a d + c, then n - m =

Explanation	Calculations	Help
$We substitute the expressions for m and n into n - m .$	$n - m = a d + c - (ab + c)$	Theory & Tactics Method Card CALC3-A Click to view full details
$We expand and cancel the common c terms.$	$a d + c - ab - c = a d - ab$
$We factor out the common factor a .$	$a d - ab = a (d - b)$

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A

If m = ab + c and n = a d + c, then n - m =

Explanation	Calculations	Help
$We substitute the expressions for m and n into n - m .$	$n - m = a d + c - (ab + c)$	Theory & Tactics Method Card CALC3-A Click to view full details
$We expand and cancel the common c terms.$	$a d + c - ab - c = a d - ab$
$We factor out the common factor a .$	$a d - ab = a (d - b)$

Scroll horizontally to view all columns

A