-2.1+u*3=-6.9

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Solution for -2.1+u*3=-6.9 equation: 


Simplifying
-2.1 + u * 3 = -6.9

Reorder the terms for easier multiplication:
-2.1 + 3u = -6.9

Solving
-2.1 + 3u = -6.9

Solving for variable 'u'.

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

Add '2.1' to each side of the equation.
-2.1 + 2.1 + 3u = -6.9 + 2.1

Combine like terms: -2.1 + 2.1 = 0.0
0.0 + 3u = -6.9 + 2.1
3u = -6.9 + 2.1

Combine like terms: -6.9 + 2.1 = -4.8
3u = -4.8

Divide each side by '3'.
u = -1.6

Simplifying
u = -1.6

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