(0.4x)-(2x)-(.8)=1.4

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Solution for (0.4x)-(2x)-(.8)=1.4 equation: 


Simplifying
(0.4x) + -1(2x) + -1(0.8) = 1.4

Remove parenthesis around (2x)
(0.4x) + -1 * 2x + -1(0.8) = 1.4

Multiply -1 * 2
(0.4x) + -2x + -1(0.8) = 1.4

Multiply -1 * 0.8
(0.4x) + -2x + -0.8 = 1.4

Reorder the terms:
-0.8 + (0.4x) + -2x = 1.4

Combine like terms: (0.4x) + -2x = -1.6x
-0.8 + -1.6x = 1.4

Solving
-0.8 + -1.6x = 1.4

Solving for variable 'x'.

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

Add '0.8' to each side of the equation.
-0.8 + 0.8 + -1.6x = 1.4 + 0.8

Combine like terms: -0.8 + 0.8 = 0.0
0.0 + -1.6x = 1.4 + 0.8
-1.6x = 1.4 + 0.8

Combine like terms: 1.4 + 0.8 = 2.2
-1.6x = 2.2

Divide each side by '-1.6'.
x = -1.375

Simplifying
x = -1.375

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