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7x+13=0
We simplify the equation to the form, which is simple to understand
7x+13=0
We move all terms containing x to the left and all other terms to the right.
+7x=0-13
We simplify left and right side of the equation.
+7x=-13
We divide both sides of the equation by 7 to get x.
x=-1.85714285714
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