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-12=-2x+7
We simplify the equation to the form, which is simple to understand
-12=-2x+7
We move all terms containing x to the left and all other terms to the right.
+2x=+7+12
We simplify left and right side of the equation.
+2x=+19
We divide both sides of the equation by 02 to get x.
x=9.5
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