21x=6x+45

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Solution for 21x=6x+45 equation:


Simplifying
21x = 6x + 45

Reorder the terms:
21x = 45 + 6x

Solving
21x = 45 + 6x

Solving for variable 'x'.

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

Add '-6x' to each side of the equation.
21x + -6x = 45 + 6x + -6x

Combine like terms: 21x + -6x = 15x
15x = 45 + 6x + -6x

Combine like terms: 6x + -6x = 0
15x = 45 + 0
15x = 45

Divide each side by '15'.
x = 3

Simplifying
x = 3

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