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54=2*3.14x
We move all terms to the left:
54-(2*3.14x)=0
We add all the numbers together, and all the variables
-(+2*3.14x)+54=0
We get rid of parentheses
-2*3.14x+54=0
Wy multiply elements
-6x+54=0
We move all terms containing x to the left, all other terms to the right
-6x=-54
x=-54/-6
x=+9
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