9b+1=7b

Solution for 9b+1=7b equation:

Simplifying
9b + 1 = 7b

Reorder the terms:
1 + 9b = 7b

Solving
1 + 9b = 7b

Solving for variable 'b'.

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

Add '-7b' to each side of the equation.
1 + 9b + -7b = 7b + -7b

Combine like terms: 9b + -7b = 2b
1 + 2b = 7b + -7b

Combine like terms: 7b + -7b = 0
1 + 2b = 0

Add '-1' to each side of the equation.
1 + -1 + 2b = 0 + -1

Combine like terms: 1 + -1 = 0
0 + 2b = 0 + -1
2b = 0 + -1

Combine like terms: 0 + -1 = -1
2b = -1

Divide each side by '2'.
b = -0.5

Simplifying
b = -0.5