x+8.9=13.1

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Solution for x+8.9=13.1 equation: 


Simplifying
x + 8.9 = 13.1

Reorder the terms:
8.9 + x = 13.1

Solving
8.9 + x = 13.1

Solving for variable 'x'.

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

Add '-8.9' to each side of the equation.
8.9 + -8.9 + x = 13.1 + -8.9

Combine like terms: 8.9 + -8.9 = 0.0
0.0 + x = 13.1 + -8.9
x = 13.1 + -8.9

Combine like terms: 13.1 + -8.9 = 4.2
x = 4.2

Simplifying
x = 4.2

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