Solve for s in this equation. Depreciation. D=C-s/n
This is my answer D-C=C-s/n-c
D-C=-s/n
-n(D-C)=-s/n*(-n)
-nD+nC=s
s=n(C-D)
Please chack to see if this is correct
Looks fine to me. A slightly shorter (by 2 lines) rearragement is:
D=C-s/n
D+s/n=C
s/n=C-D
s=n(C-D)
but hey, you got there!
Thanks for the review. I thought the answer was right, but my algebra tacher said it was wrong
wrong because of the wrong answer, or wrong because of the wrong method? Best check with the teacher.
it is wrong! the s is still negative so the real answer is D+C=s
I don't understand. Where is the n in your answer?
Also it is not possible to rearrange D+C=s back to:
D=C-s/n
She said that the first step was wrong
If the first step is wrong, let's try a different approach:
D = C - s/n
We want to isolate 's' on one side of the equation. First, let's multiply both sides by 'n' to get rid of the fraction:
nD = Cn - s
Now, we want to move s to the left side and the nD term to the right side:
s = Cn - nD
So the final answer should be:
s = n(C - D)
To solve for s in the equation D=C-s/n, let's break down the steps:
Step 1: Start with the equation D = C - s/n.
Step 2: Add s/n to both sides to isolate the s term:
D + s/n = C.
Step 3: Subtract D from both sides to fully isolate the s term:
s/n = C - D.
Step 4: Multiply both sides by n to solve for s:
s = n(C - D).
So, the correct answer is s = n(C - D).
If your algebra teacher said that the first step was wrong, it's important to understand why. Let's go through the steps and see where the mistake might be.
Starting with the original equation: D = C - (s/n)
1. To isolate the variable 's', you want to get rid of the terms on the right side of the equation first.
Add s/n to both sides of the equation: D + (s/n) = C - (s/n) + (s/n)
Simplifying the right side: D + (s/n) = C
2. Next, we want to isolate 's' on one side of the equation. To do this, we need to get rid of the (s/n) term on the left side.
Subtract (s/n) from both sides of the equation: D + (s/n) - (s/n) = C - (s/n)
Simplifying the left side: D = C - (s/n)
At this point, we have arrived back at the original equation, which means that the answer you provided initially, s = n(C - D), is correct.
If your algebra teacher marked it as wrong, it's important to ask for clarification on what mistake was made. It's possible there was a misunderstanding or miscommunication.