4(13+3)-7=6(13)-21

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Solution for 4(13+3)-7=6(13)-21 equation:


4(13+3)-7=6(13)-21

We simplify the equation to the form, which is simple to understand 
4(13+3)-7=6(13)-21

Reorder the terms in parentheses
+(+64)-7=6*(13)-21

Remove unnecessary parentheses
+64-7=+6+*(+13+)-21

Reorder the terms in parentheses
+64-7=+(+78)-21

Remove unnecessary parentheses
+64-7=+78-21

We move all terms containing  to the left and all other terms to the right. 
0=+78-21-64+7

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

0=0

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

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