6-7(a+1)=-3(2-8)

Solution for 6-7(a+1)=-3(2-8) equation:

6-7(a+1)=-3(2-8)

We simplify the equation to the form, which is simple to understand 
6-7(a+1)=-3(2-8)

Simplifying terms in parentheses
6-7*(a+1)=-3*(-6)

Reorder the terms in parentheses
6+(-7a-7)=-3*(-6)

Remove unnecessary parentheses
+6-7a-7=-3+*(-6+)

Reorder the terms in parentheses
6-7a-7=+(+18)

Remove unnecessary parentheses
+6-7a-7=+18

We move all terms containing a to the left and all other terms to the right. 
-7a=+18-6+7

We simplify left and right side of the equation. 
-7a=+19

We divide both sides of the equation by -7 to get a. 
a=-2.71428571429