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-7x+3(-3x-11)=-145
We simplify the equation to the form, which is simple to understand
-7x+3(-3x-11)=-145
Reorder the terms in parentheses
-7x+(-9x-33)=-145
Remove unnecessary parentheses
-7x-9x-33=-145
We move all terms containing x to the left and all other terms to the right.
-7x-9x=-145+33
We simplify left and right side of the equation.
-16x=-112
We divide both sides of the equation by -16 to get x.
x=7
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