21X=(X*9)13

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Solution for 21X=(X*9)13 equation:


Simplifying
21X = (X * 9) * 13

Reorder the terms for easier multiplication:
21X = (9X) * 13

Remove parenthesis around (9X)
21X = 9X * 13

Reorder the terms for easier multiplication:
21X = 9 * 13X

Multiply 9 * 13
21X = 117X

Solving
21X = 117X

Solving for variable 'X'.

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

Add '-117X' to each side of the equation.
21X + -117X = 117X + -117X

Combine like terms: 21X + -117X = -96X
-96X = 117X + -117X

Combine like terms: 117X + -117X = 0
-96X = 0

Divide each side by '-96'.
X = 0

Simplifying
X = 0

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