How do you simplify #(-18)+(18)+(-4)#?

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Answer 1 · 2017-08-06T09:01:11

#-4#

#(-18)+(18)+(-4)#

Remove the brackets first to get:

#color(blue)(-18 +18)-4#

Additive inverses add to #0#

#=color(blue)(0)-4#

#=-4#

Answer 2 · 2018-08-06T03:15:09

#-4#

The parenthesis are unnecessary, so we now have

#-18+18-4#

The negative and the positive of a number cancel, and we're left with

#-4#

Hope this helps!