X+9=2(2X)

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Solution for X+9=2(2X) equation:


Simplifying
X + 9 = 2(2X)

Reorder the terms:
9 + X = 2(2X)

Remove parenthesis around (2X)
9 + X = 2 * 2X

Multiply 2 * 2
9 + X = 4X

Solving
9 + X = 4X

Solving for variable 'X'.

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

Add '-4X' to each side of the equation.
9 + X + -4X = 4X + -4X

Combine like terms: X + -4X = -3X
9 + -3X = 4X + -4X

Combine like terms: 4X + -4X = 0
9 + -3X = 0

Add '-9' to each side of the equation.
9 + -9 + -3X = 0 + -9

Combine like terms: 9 + -9 = 0
0 + -3X = 0 + -9
-3X = 0 + -9

Combine like terms: 0 + -9 = -9
-3X = -9

Divide each side by '-3'.
X = 3

Simplifying
X = 3

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