7(3+x)=42

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


7(3+x)=42

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

Reorder the terms in parentheses
+(+21+7x)=42

Remove unnecessary parentheses
+21+7x=+42

We move all terms containing x to the left and all other terms to the right. 
+7x=+42-21

We simplify left and right side of the equation. 
+7x=+21

We divide both sides of the equation by 7 to get x. 
x=3

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