5+8=-u-8u

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Solution for 5+8=-u-8u equation:


Simplifying
5 + 8 = -1u + -8u

Combine like terms: 5 + 8 = 13
13 = -1u + -8u

Combine like terms: -1u + -8u = -9u
13 = -9u

Solving
13 = -9u

Solving for variable 'u'.

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

Add '9u' to each side of the equation.
13 + 9u = -9u + 9u

Combine like terms: -9u + 9u = 0
13 + 9u = 0

Add '-13' to each side of the equation.
13 + -13 + 9u = 0 + -13

Combine like terms: 13 + -13 = 0
0 + 9u = 0 + -13
9u = 0 + -13

Combine like terms: 0 + -13 = -13
9u = -13

Divide each side by '9'.
u = -1.444444444

Simplifying
u = -1.444444444

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