Simplifying
2x + 2a = 4b
Reorder the terms:
2a + 2x = 4b
Solving
2a + 2x = 4b
Solving for variable 'a'.
Move all terms containing a to the left, all other terms to the right.
Add '-2x' to each side of the equation.
2a + 2x + -2x = 4b + -2x
Combine like terms: 2x + -2x = 0
2a + 0 = 4b + -2x
2a = 4b + -2x
Divide each side by '2'.
a = 2b + -1x
Simplifying
a = 2b + -1x