How do you simplify #9 -［(42+6)-9］+(4+26)#?

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Answer 1 · 2018-03-26T00:54:17

#20#.

Using PEMDAS we start with multiplying the terms inside the parentheses:

#9-[(8+6)-9]+(4+12)#

Then you add the terms inside the parentheses:

#9-[(14)-9]+(16)#

Now combine the terms in the brackets:

#9-[5]+(16)#

Add/subtract to get:

#20 #

How do you simplify #9 -［(4*2+6)-9］+(4+2*6)#?