(3x+5x-3)-3*(x+x+4)=0

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Solution for (3x+5x-3)-3*(x+x+4)=0 equation:


(3x+5x-3)-3*(x+x+4)=0

We simplify the equation to the form, which is simple to understand 
(3x+5x-3)-3*(x+x+4)=0

Remove unnecessary parentheses
-3+8x-3*(+4+2x)=0

Reorder the terms in parentheses
-3+8x+(-12-6x)=0

Remove unnecessary parentheses
-3+8x-12-6x=0

We move all terms containing x to the left and all other terms to the right. 
+8x-6x=0+3+12

We simplify left and right side of the equation. 
+2x=+15

We divide both sides of the equation by 2 to get x. 
x=7.5

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