7(3-3x)=42

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Solution for 7(3-3x)=42 equation:


7(3-3x)=42

We simplify the equation to the form, which is simple to understand 
7(3-3x)=42

Reorder the terms in parentheses
+(+21-21x)=42

Remove unnecessary parentheses
+21-21x=+42

We move all terms containing x to the left and all other terms to the right. 
-21x=+42-21

We simplify left and right side of the equation. 
-21x=+21

We divide both sides of the equation by -21 to get x. 
x=-1

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