The scale balanced when n+20=80
Suppose the left side becomes n+3
How can I change the right side so that n+3=____ is equivalent to n+20=80
How can I change the right side to get an equivalent equation my choices are
A. Add blank to the right side
B. Divide the right side by blank
C. Substract blank from the right side
D. Multiply the right side by blank
I know whatever I do on one side I do on the other side
N+3= n+20=80 so n=60 right? If n=60 that means 60+3=63 but 63 does not =80
Please help
20
To change the right side of the equation n + 3 = ____, you need to manipulate the equation n + 20 = 80.
To make both equations equivalent, you need to perform the same operation on both sides. Let's analyze each choice:
A. Add blank to the right side:
If you add a number to the right side of n + 20 = 80, you must also add the same number to the right side of n + 3. This choice is not valid because it doesn't preserve the equality.
B. Divide the right side by blank:
If you divide the right side of n + 20 = 80 by a number, you would need to divide the right side of n + 3 by the same number. Again, this choice is not valid because it doesn't preserve the equality.
C. Subtract blank from the right side:
If you subtract a number from the right side of n + 20 = 80, you must also subtract the same number from the right side of n + 3. This choice can work if you subtract 17 from both sides.
Subtracting 17 from n + 20 = 80 gives n + 3 = 63. However, this does not yield the desired result.
D. Multiply the right side by blank:
If you multiply the right side of n + 20 = 80 by a number, you would need to multiply the right side of n + 3 by the same number. This choice can work if you multiply by 5.
Multiplying both sides of n + 20 = 80 by 5 gives 5n + 100 = 400. Correspondingly, you would multiply n + 3 by 5, resulting in 5n + 15.
Therefore, the correct choice is D. Multiply the right side by 5.
To make the equation n + 3 = ____ equivalent to n + 20 = 80, we need to determine what operation should be performed on the right side.
Given that n + 20 = 80, we want to modify the equation n + 3 = ____ to achieve the same value of n.
To go from 20 to 3, we need to subtract 17 (20 - 17 = 3). Therefore, we should subtract 17 from 80 to maintain equality.
Here are the possible operations for modifying the right side:
A. Add blank to the right side.
B. Divide the right side by blank.
C. Subtract blank from the right side. (Correct choice for this scenario)
D. Multiply the right side by blank.
In this case, we need to choose option C.
Therefore, to make n + 3 = ____ equivalent to n + 20 = 80, we should subtract 17 from the right side of n + 3, resulting in n + 3 = 80 - 17.
Simplifying the equation, we have n + 3 = 63.
However, let's recap your work involving n = 60.
If n + 20 = 80, then subtracting 20 from both sides, we have n = 60.
So, substituting n = 60 back into the modified equation, we get 60 + 3 = 63, which is correct.
Therefore, the correct answer is that n = 60 satisfies both n + 20 = 80 and n + 3 = 63.
n + 20 = 80 , becomes
n + 3 = ???
what did you do to 20 to bring it down to 20 ??
I bet you subtracted 17.
So do the same thing to the right side.
You said "I know whatever I do on one side I do on the other side " , but you didn't do it