SOLUTION: what is the missing number? 6,781+ 2,124=2,124+

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Question 21887: what is the missing number? 6,781+ 2,124=2,124+
Answer by Alwayscheerful(414) About Me  (Show Source):
You can put this solution on YOUR website!
For the missing number, I would use the variable X.
So, your equation is this:
6781%2B2124=2124%2Bx
Then simplify to make the equation look easier
addition_cartoon%286781%2C2124%29
Then you get
8905=2124%2Bx
How do you find X now?
Isolate the X by subtracting 2124 from both sides
subtraction_cartoon%288905%2C2124%29
So X = 6781
Hope this helps!