x+40.4=30.9

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Solution for x+40.4=30.9 equation: 


Simplifying
x + 40.4 = 30.9

Reorder the terms:
40.4 + x = 30.9

Solving
40.4 + x = 30.9

Solving for variable 'x'.

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

Add '-40.4' to each side of the equation.
40.4 + -40.4 + x = 30.9 + -40.4

Combine like terms: 40.4 + -40.4 = 0.0
0.0 + x = 30.9 + -40.4
x = 30.9 + -40.4

Combine like terms: 30.9 + -40.4 = -9.5
x = -9.5

Simplifying
x = -9.5

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