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39=2x+4x+9
We simplify the equation to the form, which is simple to understand
39=2x+4x+9
We move all terms containing x to the left and all other terms to the right.
-2x-4x=+9-39
We simplify left and right side of the equation.
-6x=-30
We divide both sides of the equation by -6 to get x.
x=5
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