3(x+5+3x)=8x-21

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Solution for 3(x+5+3x)=8x-21 equation:


3(x+5+3x)=8x-21

We simplify the equation to the form, which is simple to understand 
3(x+5+3x)=8x-21

Simplifying terms in parentheses
3*(+5+4x)=8x-21

Reorder the terms in parentheses
+(+15+12x)=8x-21

Remove unnecessary parentheses
+15+12x=+8x-21

We move all terms containing x to the left and all other terms to the right. 
+12x-8x=-21-15

We simplify left and right side of the equation. 
+4x=-36

We divide both sides of the equation by 4 to get x. 
x=-9

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