21x+3x=18x+9+15x

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Solution for 21x+3x=18x+9+15x equation:


Simplifying
21x + 3x = 18x + 9 + 15x

Combine like terms: 21x + 3x = 24x
24x = 18x + 9 + 15x

Reorder the terms:
24x = 9 + 18x + 15x

Combine like terms: 18x + 15x = 33x
24x = 9 + 33x

Solving
24x = 9 + 33x

Solving for variable 'x'.

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

Add '-33x' to each side of the equation.
24x + -33x = 9 + 33x + -33x

Combine like terms: 24x + -33x = -9x
-9x = 9 + 33x + -33x

Combine like terms: 33x + -33x = 0
-9x = 9 + 0
-9x = 9

Divide each side by '-9'.
x = -1

Simplifying
x = -1

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