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355=-9x-5(-8x-9)
We simplify the equation to the form, which is simple to understand
355=-9x-5(-8x-9)
Reorder the terms in parentheses
355=-9x+(+40x+45)
Remove unnecessary parentheses
+355=-9x+40x+45
We move all terms containing x to the left and all other terms to the right.
+9x-40x=+45-355
We simplify left and right side of the equation.
-31x=-310
We divide both sides of the equation by -31 to get x.
x=10
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