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4=7x+6x
We simplify the equation to the form, which is simple to understand
4=7x+6x
We move all terms containing x to the left and all other terms to the right.
-7x-6x=-4
We simplify left and right side of the equation.
-13x=-4
We divide both sides of the equation by -13 to get x.
x=0.307692307692
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