Answer:
Simplifying
ax + b = 2x + 3
Reorder the terms:
ax + b = 3 + 2x
Solving
ax + b = 3 + 2x
Solving for variable 'a'.
Move all terms containing a to the left, all other terms to the right.
Add '-1b' to each side of the equation.
ax + b + -1b = 3 + -1b + 2x
Combine like terms: b + -1b = 0
ax + 0 = 3 + -1b + 2x
ax = 3 + -1b + 2x
Divide each side by 'x'.
a = 3x-1 + -1bx-1 + 2
Simplifying
a = 3x-1 + -1bx-1 + 2
Reorder the terms:
a = 2 + -1bx-1 + 3x-1