b-1+6b=39

Solution for b-1+6b=39 equation:

Simplifying
b + -1 + 6b = 39

Reorder the terms:
-1 + b + 6b = 39

Combine like terms: b + 6b = 7b
-1 + 7b = 39

Solving
-1 + 7b = 39

Solving for variable 'b'.

Move all terms containing b to the left, all other terms to the right.

Add '1' to each side of the equation.
-1 + 1 + 7b = 39 + 1

Combine like terms: -1 + 1 = 0
0 + 7b = 39 + 1
7b = 39 + 1

Combine like terms: 39 + 1 = 40
7b = 40

Divide each side by '7'.
b = 5.714285714

Simplifying
b = 5.714285714