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21/5=4x-1/5
We move all terms to the left:
21/5-(4x-1/5)=0
We add all the numbers together, and all the variables
-(+4x-1/5)+21/5=0
We get rid of parentheses
-4x+1/5+21/5=0
We multiply all the terms by the denominator
-4x*5+1+21=0
We add all the numbers together, and all the variables
-4x*5+22=0
Wy multiply elements
-20x+22=0
We move all terms containing x to the left, all other terms to the right
-20x=-22
x=-22/-20
x=1+1/10
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