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30/3.78=x
We move all terms to the left:
30/3.78-(x)=0
We add all the numbers together, and all the variables
-1x+30/3.78=0
We multiply all the terms by the denominator
-1x*3.78+30=0
Wy multiply elements
-3.78x+30=0
We move all terms containing x to the left, all other terms to the right
-3.78x=-30
x=-30/-3.78
x=7+1/1.06779661017
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