u+3.9=6.13

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Solution for u+3.9=6.13 equation: 


Simplifying
u + 3.9 = 6.13

Reorder the terms:
3.9 + u = 6.13

Solving
3.9 + u = 6.13

Solving for variable 'u'.

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

Add '-3.9' to each side of the equation.
3.9 + -3.9 + u = 6.13 + -3.9

Combine like terms: 3.9 + -3.9 = 0.0
0.0 + u = 6.13 + -3.9
u = 6.13 + -3.9

Combine like terms: 6.13 + -3.9 = 2.23
u = 2.23

Simplifying
u = 2.23

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