21(2x+4)=

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Solution for 21(2x+4)= equation:


21(2x+4)=0

We simplify the equation to the form, which is simple to understand 
21(2x+4)=0

Reorder the terms in parentheses
+(+42x+84)=0

Remove unnecessary parentheses
+42x+84=0

We move all terms containing x to the left and all other terms to the right. 
+42x=0-84

We simplify left and right side of the equation. 
+42x=-84

We divide both sides of the equation by 42 to get x. 
x=-2

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