3(a-6)=42

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Solution for 3(a-6)=42 equation:


3(a-6)=42

We simplify the equation to the form, which is simple to understand 
3(a-6)=42

Reorder the terms in parentheses
+(+3a-18)=42

Remove unnecessary parentheses
+3a-18=+42

We move all terms containing a to the left and all other terms to the right. 
+3a=+42+18

We simplify left and right side of the equation. 
+3a=+60

We divide both sides of the equation by 3 to get a. 
a=20

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