7(x+3)=7x+21

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Solution for 7(x+3)=7x+21 equation:


7(x+3)=7x+21

We simplify the equation to the form, which is simple to understand 
7(x+3)=7x+21

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

Remove unnecessary parentheses
+7x+21=+7x+21

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

We simplify left and right side of the equation. 
0x=0

0=0

This equation is an identity, so all real numbers are solutions.

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