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x/28=0.4
We move all terms to the left:
x/28-(0.4)=0
We add all the numbers together, and all the variables
x/28-0.4=0
We multiply all the terms by the denominator
x-(0.4)*28=0
We add all the numbers together, and all the variables
x-11.2=0
We move all terms containing x to the left, all other terms to the right
x=11.2
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