Asked by Louise

if 9m+57=87 then 9(m+6)=?
Answered by Ms. Sue
9m+57=87 then 9(m+6)=?

9m = 30

m = 3.33333

Substitute 3.3333 for m

Answered by Louise
That's what I had but it says the answer is 84
Answered by Ms. Sue
9(3.33333 + 6) =

9 * 9.33333 = 83.999999 = 84

Answered by Ms. Sue
Remember PEMDAS Do the calculations within the parentheses first.

https://www.mathsisfun.com/operation-order-pemdas.html
Answered by Louise
Thank you
Answered by Ms. Sue
You're welcome.
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