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21/17.5=x/6
We simplify the equation to the form, which is simple to understand
21/17.5=x/6
We move all terms containing x to the left and all other terms to the right.
-0.16666666666667x=-1.2
We simplify left and right side of the equation.
-0.16666666666667x=-1.2
We divide both sides of the equation by -00.16666666666667 to get x.
x=7.1999999999999
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