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11x+7x=12
We simplify the equation to the form, which is simple to understand
11x+7x=12
We move all terms containing x to the left and all other terms to the right.
+11x+7x=+12
We simplify left and right side of the equation.
+18x=+12
We divide both sides of the equation by 18 to get x.
x=0.666666666667
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