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3x+14x+42=0
We simplify the equation to the form, which is simple to understand
3x+14x+42=0
We move all terms containing x to the left and all other terms to the right.
+3x+14x=0-42
We simplify left and right side of the equation.
+17x=-42
We divide both sides of the equation by 17 to get x.
x=-2.4705882352941
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