9(8)+9(8)+6(6)=180

Solution for 9(8)+9(8)+6(6)=180 equation:

9(8)+9(8)+6(6)=180

We simplify the equation to the form, which is simple to understand 
9(8)+9(8)+6(6)=180

Reorder the terms in parentheses
+(+72)+9*(8)+6*(6)=180

Remove unnecessary parentheses
+72+9+*(+8+)+6+*(+6+)=+180

Reorder the terms in parentheses
+72+(+72)+6*(6)=180

Remove unnecessary parentheses
+72+72+6+*(+6+)=+180

Reorder the terms in parentheses
+72+72+(+36)=180

Remove unnecessary parentheses
+72+72+36=+180

We move all terms containing  to the left and all other terms to the right. 
0=+180-72-72-36

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

0=0

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