0.4-2x=1.3

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Solution for 0.4-2x=1.3 equation: 


Simplifying
0.4 + -2x = 1.3

Solving
0.4 + -2x = 1.3

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 + -2x = 1.3 + -0.4

Combine like terms: 0.4 + -0.4 = 0.0
0.0 + -2x = 1.3 + -0.4
-2x = 1.3 + -0.4

Combine like terms: 1.3 + -0.4 = 0.9
-2x = 0.9

Divide each side by '-2'.
x = -0.45

Simplifying
x = -0.45

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