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11-x/21=25
We move all terms to the left:
11-x/21-(25)=0
We add all the numbers together, and all the variables
-x/21-14=0
We multiply all the terms by the denominator
-x-14*21=0
We add all the numbers together, and all the variables
-1x-294=0
We move all terms containing x to the left, all other terms to the right
-x=294
x=294/-1
x=-294
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