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7x+2(x-6)+4(x+5)=0
We simplify the equation to the form, which is simple to understand
7x+2(x-6)+4(x+5)=0
Reorder the terms in parentheses
7x+(+2x-12)+4*(x+5)=0
Remove unnecessary parentheses
+7x+2x-12+4+*(+x+5+)=0
Reorder the terms in parentheses
7x+2x-12+(+4x+20)=0
Remove unnecessary parentheses
+7x+2x-12+4x+20=0
We move all terms containing x to the left and all other terms to the right.
+7x+2x+4x=0+12-20
We simplify left and right side of the equation.
+13x=-8
We divide both sides of the equation by 13 to get x.
x=-0.615384615385
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