How do you evaluate the expression #(n * 3 + 27 -: 3)#, given #n = 3#?

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Answer 1 · 2018-04-20T06:19:12

#3*3+27-:3=color(blue)18#

Evaluate:

#(n*3+27-:3)#, given #n=3#

Substitute #3# for #n#.

#3*3+27-:3#

Follow the order of operations as indicated in the acronym PEMDAS:

Parentheses/Brackets
Exponents/Powers
Multiplication and Division in order from left to right.
Addition and Subtraction in order from left to right.

Simplify #3*3# to #9#.

#9+27-:3#

Simplify #27-:3# to #9#.

#9+9#

Simplify.

#18#