X+3x+5x=81

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Solution for X+3x+5x=81 equation: 


Simplifying
X + 3x + 5x = 81

Combine like terms: 3x + 5x = 8x
X + 8x = 81

Solving
X + 8x = 81

Solving for variable 'X'.

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

Add '-8x' to each side of the equation.
X + 8x + -8x = 81 + -8x

Combine like terms: 8x + -8x = 0
X + 0 = 81 + -8x
X = 81 + -8x

Simplifying
X = 81 + -8x

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