6x-.4=20

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Solution for 6x-.4=20 equation:


Simplifying
6x + -0.4 = 20

Reorder the terms:
-0.4 + 6x = 20

Solving
-0.4 + 6x = 20

Solving for variable 'x'.

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

Add '0.4' to each side of the equation.
-0.4 + 0.4 + 6x = 20 + 0.4

Combine like terms: -0.4 + 0.4 = 0.0
0.0 + 6x = 20 + 0.4
6x = 20 + 0.4

Combine like terms: 20 + 0.4 = 20.4
6x = 20.4

Divide each side by '6'.
x = 3.4

Simplifying
x = 3.4

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