.2x-1=-.4

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Solution for .2x-1=-.4 equation: 


Simplifying
0.2x + -1 = -0.4

Reorder the terms:
-1 + 0.2x = -0.4

Solving
-1 + 0.2x = -0.4

Solving for variable 'x'.

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

Add '1' to each side of the equation.
-1 + 1 + 0.2x = -0.4 + 1

Combine like terms: -1 + 1 = 0
0 + 0.2x = -0.4 + 1
0.2x = -0.4 + 1

Combine like terms: -0.4 + 1 = 0.6
0.2x = 0.6

Divide each side by '0.2'.
x = 3

Simplifying
x = 3

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