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0.21=x/528
We move all terms to the left:
0.21-(x/528)=0
We add all the numbers together, and all the variables
-(+x/528)+0.21=0
We get rid of parentheses
-x/528+0.21=0
We multiply all the terms by the denominator
-x+(0.21)*528=0
We add all the numbers together, and all the variables
-1x+110.88=0
We move all terms containing x to the left, all other terms to the right
-x=-110.88
x=-110.88/-1
x=110+0.88/1
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