SOLUTION: 8(5-n)-19+17n+21

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Question 647860: 8(5-n)-19+17n+21
Answer by Algebraic(50) About Me  (Show Source):
You can put this solution on YOUR website!
This is an equation that can be solved by using PEMDAS (order of operations).
Step 1: Distribute the '8' to the parenthesis.
8%285-n%29-19%2B17n%2B21
40-8n-19%2B17n%2B21
Step 2: Put like terms together to make it easier to solve
40-19%2B21-8n%2B17n
Step 3: Combine like terms
42%2B9n
The most simplified version of the equation is 42%2B9n
You can write the equation like 42%2B9n or 9n%2B42
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You also asked for help on this equation: -9%284f-6f%29%2B%28-15f%29
Let's begin like we did with the first and distribute the '-9' to the parenthesis.
Step 1: Distribute the '-9' to the parenthesis
-9%284f-6f%29%2B%28-15f%29
-36f+%2B+54f+-+15f
Remember: A negative (-) times a positive (+) = a negative (-)... A negative (-) times a negative (-) = a positive (+)
Step 2: Combine like terms
-36f+%2B+54f+-+15f
All of these numbers have the same variable, so the answer will be one single term.
Let's take it one step at a time.
-36f+%2B+54f+-+15f
18f+-+15f
Step 3: Combine the last like terms to get the answer
18f+-+15f
The answer is 3f