x+2x+.5x=105

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Solution for x+2x+.5x=105 equation: 


Simplifying
x + 2x + 0.5x = 105

Combine like terms: x + 2x = 3x
3x + 0.5x = 105

Combine like terms: 3x + 0.5x = 3.5x
3.5x = 105

Solving
3.5x = 105

Solving for variable 'x'.

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

Divide each side by '3.5'.
x = 30

Simplifying
x = 30

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