3u+5(1-u)=u+8

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Solution for 3u+5(1-u)=u+8 equation:


Simplifying
3u + 5(1 + -1u) = u + 8
3u + (1 * 5 + -1u * 5) = u + 8
3u + (5 + -5u) = u + 8

Reorder the terms:
5 + 3u + -5u = u + 8

Combine like terms: 3u + -5u = -2u
5 + -2u = u + 8

Reorder the terms:
5 + -2u = 8 + u

Solving
5 + -2u = 8 + u

Solving for variable 'u'.

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

Add '-1u' to each side of the equation.
5 + -2u + -1u = 8 + u + -1u

Combine like terms: -2u + -1u = -3u
5 + -3u = 8 + u + -1u

Combine like terms: u + -1u = 0
5 + -3u = 8 + 0
5 + -3u = 8

Add '-5' to each side of the equation.
5 + -5 + -3u = 8 + -5

Combine like terms: 5 + -5 = 0
0 + -3u = 8 + -5
-3u = 8 + -5

Combine like terms: 8 + -5 = 3
-3u = 3

Divide each side by '-3'.
u = -1

Simplifying
u = -1

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