How do you find the sum #18+(-32)#?

1 Answer
Vinícius Ferraz
Dec 28, 2016

#-14#

Explanation:

-32 is the number which added to 32 equals zero.
#-32 = x, x + 32 = 32 + x = 0#

You want #18 + x = 32 - y + x = 0 - y#

#18 = 32 - y \Rightarrow y = 32 - 18 = 14#

But you want #0 - y = -14#

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