.5x-.2x=3

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Solution for .5x-.2x=3 equation: 


Simplifying
0.5x + -0.2x = 3

Combine like terms: 0.5x + -0.2x = 0.3x
0.3x = 3

Solving
0.3x = 3

Solving for variable 'x'.

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

Divide each side by '0.3'.
x = 10

Simplifying
x = 10

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