3.1=-3u+7.9

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Solution for 3.1=-3u+7.9 equation: 


Simplifying
3.1 = -3u + 7.9

Reorder the terms:
3.1 = 7.9 + -3u

Solving
3.1 = 7.9 + -3u

Solving for variable 'u'.

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

Add '3u' to each side of the equation.
3.1 + 3u = 7.9 + -3u + 3u

Combine like terms: -3u + 3u = 0
3.1 + 3u = 7.9 + 0
3.1 + 3u = 7.9

Add '-3.1' to each side of the equation.
3.1 + -3.1 + 3u = 7.9 + -3.1

Combine like terms: 3.1 + -3.1 = 0.0
0.0 + 3u = 7.9 + -3.1
3u = 7.9 + -3.1

Combine like terms: 7.9 + -3.1 = 4.8
3u = 4.8

Divide each side by '3'.
u = 1.6

Simplifying
u = 1.6

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