3(2t+1)-15=t-(t+11)

Solution for 3(2t+1)-15=t-(t+11) equation:

3(2t+1)-15=t-(t+11)

We simplify the equation to the form, which is simple to understand 
3(2t+1)-15=t-(t+11)

Reorder the terms in parentheses
+(+6t+3)-15=t-(t+11)

Remove unnecessary parentheses
+6t+3-15=+t-(+t+11+)

Remove unnecessary parentheses
+6t+3-15=t-1t-11

We move all terms containing t to the left and all other terms to the right. 
+6t-1t+1t=-11-3+15

We simplify left and right side of the equation. 
+6t=+1

We divide both sides of the equation by 6 to get t. 
t=0.16666666666667