u=3(5-u)+1

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Solution for u=3(5-u)+1 equation: 


Simplifying
u = 3(5 + -1u) + 1
u = (5 * 3 + -1u * 3) + 1
u = (15 + -3u) + 1

Reorder the terms:
u = 15 + 1 + -3u

Combine like terms: 15 + 1 = 16
u = 16 + -3u

Solving
u = 16 + -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.
u + 3u = 16 + -3u + 3u

Combine like terms: u + 3u = 4u
4u = 16 + -3u + 3u

Combine like terms: -3u + 3u = 0
4u = 16 + 0
4u = 16

Divide each side by '4'.
u = 4

Simplifying
u = 4

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