1/3(9x-21)=-(x-9)

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Solution for 1/3(9x-21)=-(x-9) equation:


1/3 (9x - 21)= - (x - 9)

We simplify the equation to the form, which is simple to understand 
1/3(9x-21)=-(x-9)

Reorder the terms in parentheses
+(+3x-7)=-(x-9)

Remove unnecessary parentheses
+3x-7=-(+x-9+)

Remove unnecessary parentheses
+3x-7=-1x+9

We move all terms containing x to the left and all other terms to the right. 
+3x+1x=+9+7

We simplify left and right side of the equation. 
+4x=+16

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

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