How do you evaluate #5( 8+ 3) + 2( 7\cdot 3- 7)#?

1 Answer
EZ as pi
Aug 13, 2017

#83#

Explanation:

Within each term, simplify:

  • brackets first
  • powers and roots
  • multiply and divide

addition and subtraction of the answers to the terms is done last.

#5color(blue)((8+3))" "+" "2(color(red)(7xx3)-7)#

#=5color(blue)((11))" "+" "2(color(red)(21)-7)#

#=55color(white)(mm.m)+" "2(14)#

#=55 color(white)(mm.m)+" "28#

#=83#

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