SOLUTION: Thank you for being available this evening, I wanted to know about the 'signs' in between algebra problems with brackets. Here is my example problem: [3(x+2)+2x]-[4(y+2)-3

Algebra ->  Expressions -> SOLUTION: Thank you for being available this evening, I wanted to know about the 'signs' in between algebra problems with brackets. Here is my example problem: [3(x+2)+2x]-[4(y+2)-3      Log On


   



Question 377970: Thank you for being available this evening,
I wanted to know about the 'signs' in between algebra problems with brackets. Here is my example problem:
[3(x+2)+2x]-[4(y+2)-3(y-2)]
Will the minus sign between the problems on the left and right side change the answer at all? Or will it make a difference in the outcome?

Answer by edjones(8007) About Me  (Show Source):
You can put this solution on YOUR website!
[3(x+2)+2x]-[4(y+2)-3(y-2)]
Lets do the easy side first, the left side.
[3(x+2)+2x]
=3x+6+2x work on the interior parentheses 1st.
=5x+6
.
-[4(y+2)-3(y-2)] The tough side.
-[4y+8-3y+6] Notice you multipy -3 times y AND -2 which chnges the sign on both of them.
-[y+14]
-y-14 Ditto
.
5x+6-y-14
=5x-y-8
.
Ed