x+-0.9=-3.9

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Solution for x+-0.9=-3.9 equation: 


Simplifying
x + -0.9 = -3.9

Reorder the terms:
-0.9 + x = -3.9

Solving
-0.9 + x = -3.9

Solving for variable 'x'.

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

Add '0.9' to each side of the equation.
-0.9 + 0.9 + x = -3.9 + 0.9

Combine like terms: -0.9 + 0.9 = 0.0
0.0 + x = -3.9 + 0.9
x = -3.9 + 0.9

Combine like terms: -3.9 + 0.9 = -3
x = -3

Simplifying
x = -3

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