2b+6=b+15

Solution for 2b+6=b+15 equation:

Simplifying
2b + 6 = b + 15

Reorder the terms:
6 + 2b = b + 15

Reorder the terms:
6 + 2b = 15 + b

Solving
6 + 2b = 15 + b

Solving for variable 'b'.

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

Add '-1b' to each side of the equation.
6 + 2b + -1b = 15 + b + -1b

Combine like terms: 2b + -1b = 1b
6 + 1b = 15 + b + -1b

Combine like terms: b + -1b = 0
6 + 1b = 15 + 0
6 + 1b = 15

Add '-6' to each side of the equation.
6 + -6 + 1b = 15 + -6

Combine like terms: 6 + -6 = 0
0 + 1b = 15 + -6
1b = 15 + -6

Combine like terms: 15 + -6 = 9
1b = 9

Divide each side by '1'.
b = 9

Simplifying
b = 9