How do you simplify #[42 ÷ (3 +4) - 2] + 5# using order of operations?

Question

1713 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2018-07-09T23:08:30

#9#

#[42-:(3+4)-2]+5#

PEMDAS (the order of operations) is shown here:
www.coolmath.com

The first thing to simplify is the expression inside the parenthesis/bracket.

#[42 -: 7 - 2] + 5#

Divide:
#[6 - 2] + 5#

Subtract inside the bracket:
#4 + 5#

Add:
#9#

Hope this helps!

Answer 2 · 2018-07-10T00:02:06

#9#

The inner parenthesis simplifies to #7#, and we are left with

#(42div7-2)+5#

Division takes precedence over subtraction, so we divide first to get

#(6-2)+5#

This simplifies to

#4+5#, which is equal to #9#.

Hope this helps!