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12/9 = 4/x
We simplify the equation to the form, which is simple to understand
12/9=4/x
We move all terms containing x to the left and all other terms to the right.
-1x=-1.3333333333333
We simplify left and right side of the equation.
-1x=-1.3333333333333
We divide both sides of the equation by -01 to get x.
x=1.3333333333333
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