15x=3x+84

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Solution for 15x=3x+84 equation: 


Simplifying
15x = 3x + 84

Reorder the terms:
15x = 84 + 3x

Solving
15x = 84 + 3x

Solving for variable 'x'.

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

Add '-3x' to each side of the equation.
15x + -3x = 84 + 3x + -3x

Combine like terms: 15x + -3x = 12x
12x = 84 + 3x + -3x

Combine like terms: 3x + -3x = 0
12x = 84 + 0
12x = 84

Divide each side by '12'.
x = 7

Simplifying
x = 7

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