3-a-q=b

Solution for 3-a-q=b equation:

Simplifying
3 + -1a + -1q = b

Solving
3 + -1a + -1q = b

Solving for variable 'a'.

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

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

Reorder the terms:
3 + -3 + -1a + -1q = -3 + b

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

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

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

Divide each side by '-1'.
a = 3 + -1b + -1q

Simplifying
a = 3 + -1b + -1q