SOLUTION: 3{ [4 (x-1) +5] - [ 2 ( 2x-1) +5]} i know "pemdas", but i cant figure this out. I dont get when to apply the distributive law, and how this cancles out. I guess the order us me

Question 672714: 3{ [4 (x-1) +5] - [ 2 ( 2x-1) +5]}
i know "pemdas", but i cant figure this out. I dont get when to apply the distributive law, and how this cancles out. I guess the order us messing me up.
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Always work from the inside out

One check that you can do is just count the
number of ( 's and the number of ) 's -they
should be the same. In this problem, they
both are 5.
------------
first step:

Now simplify:

The doesn't really need to be in
parentheses at this point, also, do the
subtraction using distributive law.

Note that it doesn't matter what is,
the result is still

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