3(7-2x)+9=42

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Solution for 3(7-2x)+9=42 equation:


3(7-2x)+9=42

We simplify the equation to the form, which is simple to understand 
3(7-2x)+9=42

Reorder the terms in parentheses
+(+21-6x)+9=42

Remove unnecessary parentheses
+21-6x+9=+42

We move all terms containing x to the left and all other terms to the right. 
-6x=+42-21-9

We simplify left and right side of the equation. 
-6x=+12

We divide both sides of the equation by -6 to get x. 
x=-2

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