SOLUTION: need help in solving order of operations problem. I'm just not getting this! s x 4 + 300 ÷ (10 - 20) = 14 Solution (s = 11)

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Question 386749: need help in solving order of operations problem. I'm just not getting this!
s x 4 + 300 ÷ (10 - 20) = 14 Solution (s = 11)





Found 3 solutions by gwendolyn, armstrkl, rfer:
Answer by gwendolyn(128) About Me  (Show Source):
You can put this solution on YOUR website!
The way to solve Order of Operations is by using PEMDAS:
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction
.
First, we'll solve the parentheses:
4s+300÷(10-20)=14
4s+300÷(-10)=14
There are no exponents, and no multiplication that can done right now. So, we'll divide 300 and negative 10.
4s+300÷(-10)=14
4s+(-30)=14
4s-30=14
Then, we can add 30 to both sides.
4s-30=14
4s=44
Now that the equation is simplified, we can divide both sides by 4.
4s=44
s=11
Since you stated that s was equal to 11, we know that this answer is correct.

Answer by armstrkl(28) About Me  (Show Source):
You can put this solution on YOUR website!
4s%2B300%2F%2810-20%29+=14
4s%2B300%2F%28-10%29+=+14 Parentheses
4s+-+30+=+14%7D%7D++++Division%0D%0A%7B%7B%7B4s+=+44 Add 30 to both sides
+s+=+11 Divide both sides by 4
Thats it! :)

Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
11*4+300/(10-20)=14
44+300/-10=14
44-30=14
addition and subtraction are the very last things you do