
David G. answered 09/20/13
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n + (5/-16) = -1 original equation
n - (5/16) = -1 took the negative from the denominator, moved the numerator, no change of value
n = -1 + 5/16 added 5/16 to both sides of equation
n = -(16/16) + 5/16 changed -1 to -(16/16), equal value
n = 5/16 - (16/16) reversed the order
n = -(11/16) did the arithmetic