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(x-9)/7=3x
We simplify the equation to the form, which is simple to understand
(x-9)/7=3x
Reorder the terms in parentheses
( + 0.14285714285714x-1.2857142857143)=3x
Remove unnecessary parentheses
+ 0.14285714285714x-1.2857142857143=3x
We move all terms containing x to the left and all other terms to the right.
+ 0.14285714285714x-3x=+1.2857142857143
We simplify left and right side of the equation.
-2.8571428571429x=+1.2857142857143
We divide both sides of the equation by -2.8571428571429 to get x.
x=-0.45000000000001
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