b+3=2b-1

Solution for b+3=2b-1 equation:

Simplifying
b + 3 = 2b + -1

Reorder the terms:
3 + b = 2b + -1

Reorder the terms:
3 + b = -1 + 2b

Solving
3 + b = -1 + 2b

Solving for variable 'b'.

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

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

Combine like terms: b + -2b = -1b
3 + -1b = -1 + 2b + -2b

Combine like terms: 2b + -2b = 0
3 + -1b = -1 + 0
3 + -1b = -1

Add '-3' to each side of the equation.
3 + -3 + -1b = -1 + -3

Combine like terms: 3 + -3 = 0
0 + -1b = -1 + -3
-1b = -1 + -3

Combine like terms: -1 + -3 = -4
-1b = -4

Divide each side by '-1'.
b = 4

Simplifying
b = 4