SOLUTION: How do you solve this equation. -9[6+9(-1+9)]+18
ive tried everything and got a few different answers but when i check a calculator i get something different.
-9[6+9(-1+9)]+18
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-> SOLUTION: How do you solve this equation. -9[6+9(-1+9)]+18
ive tried everything and got a few different answers but when i check a calculator i get something different.
-9[6+9(-1+9)]+18
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Question 711178: How do you solve this equation. -9[6+9(-1+9)]+18
ive tried everything and got a few different answers but when i check a calculator i get something different.
-9[6+9(-1+9)]+18
-9[6+9(8)]+18
-9[6+72]+18
(-9)78+18
-9*96
-864
Im not sure how im getting this wrong. Thank you for helping! Answer by tutor_paul(519) (Show Source):
You can put this solution on YOUR website! -9[6+9(-1+9)]+18
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Start with what is inside the innermost parentheses first:
-9[6+9(8)]+18
Then go up to the next level of parentheses (in this case written as brackets). Note that multiplication has a higher order of precedence than addition, so do that first:
-9[6+72]+18
-9[78]+18
Again, multiply before you add (this is where you went wrong):
-702+18
Finally:
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Good Luck,
tutor_paul@yahoo.com
