2-1=B

Solution for 2-1=B equation:

Simplifying
2 + -1 = B

Combine like terms: 2 + -1 = 1
1 = B

Solving
1 = 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.
1 + -1B = B + -1B

Combine like terms: B + -1B = 0
1 + -1B = 0

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

Combine like terms: 1 + -1 = 0
0 + -1B = 0 + -1
-1B = 0 + -1

Combine like terms: 0 + -1 = -1
-1B = -1

Divide each side by '-1'.
B = 1

Simplifying
B = 1