54+9x=21x

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Solution for 54+9x=21x equation:


Simplifying
54 + 9x = 21x

Solving
54 + 9x = 21x

Solving for variable 'x'.

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

Add '-21x' to each side of the equation.
54 + 9x + -21x = 21x + -21x

Combine like terms: 9x + -21x = -12x
54 + -12x = 21x + -21x

Combine like terms: 21x + -21x = 0
54 + -12x = 0

Add '-54' to each side of the equation.
54 + -54 + -12x = 0 + -54

Combine like terms: 54 + -54 = 0
0 + -12x = 0 + -54
-12x = 0 + -54

Combine like terms: 0 + -54 = -54
-12x = -54

Divide each side by '-12'.
x = 4.5

Simplifying
x = 4.5

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