0.1-x=-3.9

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Solution for 0.1-x=-3.9 equation: 


Simplifying
0.1 + -1x = -3.9

Solving
0.1 + -1x = -3.9

Solving for variable 'x'.

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

Add '-0.1' to each side of the equation.
0.1 + -0.1 + -1x = -3.9 + -0.1

Combine like terms: 0.1 + -0.1 = 0.0
0.0 + -1x = -3.9 + -0.1
-1x = -3.9 + -0.1

Combine like terms: -3.9 + -0.1 = -4
-1x = -4

Divide each side by '-1'.
x = 4

Simplifying
x = 4

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