Simplifying
X + 20x + 10x = 20 + 9x
Combine like terms: 20x + 10x = 30x
X + 30x = 20 + 9x
Solving
X + 30x = 20 + 9x
Solving for variable 'X'.
Move all terms containing X to the left, all other terms to the right.
Add '-30x' to each side of the equation.
X + 30x + -30x = 20 + 9x + -30x
Combine like terms: 30x + -30x = 0
X + 0 = 20 + 9x + -30x
X = 20 + 9x + -30x
Combine like terms: 9x + -30x = -21x
X = 20 + -21x
Simplifying
X = 20 + -21x
