x+2x+5x=78

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Solution for x+2x+5x=78 equation: 


Simplifying
x + 2x + 5x = 78

Combine like terms: x + 2x = 3x
3x + 5x = 78

Combine like terms: 3x + 5x = 8x
8x = 78

Solving
8x = 78

Solving for variable 'x'.

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

Divide each side by '8'.
x = 9.75

Simplifying
x = 9.75

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