259=b+a

Solution for 259=b+a equation:

Simplifying
259 = b + a

Reorder the terms:
259 = a + b

Solving
259 = a + b

Solving for variable 'a'.

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

Add '-1a' to each side of the equation.
259 + -1a = a + -1a + b

Combine like terms: a + -1a = 0
259 + -1a = 0 + b
259 + -1a = b

Add '-259' to each side of the equation.
259 + -259 + -1a = -259 + b

Combine like terms: 259 + -259 = 0
0 + -1a = -259 + b
-1a = -259 + b

Divide each side by '-1'.
a = 259 + -1b

Simplifying
a = 259 + -1b