7a-42=

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Solution for 7a-42= equation:


7a-42=0

We simplify the equation to the form, which is simple to understand 
7a-42=0

We move all terms containing a to the left and all other terms to the right. 
+7a=0+42

We simplify left and right side of the equation. 
+7a=+42

We divide both sides of the equation by 7 to get a. 
a=6

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