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-42+9x=-1,8+7,4
We simplify the equation to the form, which is simple to understand
-42+9x=-1,8+7,4
We move all terms containing x to the left and all other terms to the right.
+9x=-1.8+7.4+42
We simplify left and right side of the equation.
+9x=+47.6
We divide both sides of the equation by 9 to get x.
x=5.2888888888889
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