SOLUTION: (simplify) How do you do that i am so lost? 3[-42-(-86-52)]

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Question 416782: (simplify) How do you do that i am so lost?
3[-42-(-86-52)]
Answer by richard1234(7193) About Me  (Show Source):
You can put this solution on YOUR website!
Use order of operations.

The innermost parentheses should be simplified first. -86-52 = -138 so our expression is equivalent to

3[-42-(-138)]

Next, do the remaining set of parentheses. -42-(-138) = -42+138 = 96, so this is equal to 3(96), or 288.