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x+(-7)=-12
We simplify the equation to the form, which is simple to understand
x+(-7)=-12
Remove unnecessary parentheses
+x-7=-12
We move all terms containing x to the left and all other terms to the right.
+1x=-12+7
We simplify left and right side of the equation.
+1x=-5
We divide both sides of the equation by 1 to get x.
x=-5
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