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-7x-(3x+2x)-x=0
We simplify the equation to the form, which is simple to understand
-7x-(3x+2x)-x=0
Simplifying terms in parentheses
-7x-(+5x)-x=0
Remove unnecessary parentheses
-7x-5x-x=0
We move all terms containing x to the left and all other terms to the right.
-7x-5x-1x=0
We simplify left and right side of the equation.
-13x=0
We divide both sides of the equation by -13 to get x.
x=-0
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