SOLUTION: How do I work this problem: 64-6[15+2(-3+8)]? I have tried five times using PEMDAS without success in getting to the answer of -86. Thank you.

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Question 570073: How do I work this problem: 64-6[15+2(-3+8)]? I have tried five times using PEMDAS without success in getting to the answer of -86. Thank you.
Found 2 solutions by stanbon, jim_thompson5910:
Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website!
64-6[15+2(-3+8)]
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64 - 6[15+2(5)]
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64 - 6[25]
64 - 150
= -86
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Cheers,
Stan H.

Answer by jim_thompson5910(35256) (Show Source):
You can put this solution on YOUR website!
64-6[15+2(-3+8)] ... Start with the given expression

64-6[15+2(5)] ... Add -3 to 8 to get 5

64-6[15+10] ... Multiply 2 and 5 to get 10

64-6[25] ... Add 15 to 10 to get 25

64-150 ... Multiply -6 and 25 to get -150

-86 ... Subtract 150 from 64 to get -86

So 64-6[15+2(-3+8)] = -86