13u=20+9u

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Solution for 13u=20+9u equation: 


Simplifying
13u = 20 + 9u

Solving
13u = 20 + 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.
13u + -9u = 20 + 9u + -9u

Combine like terms: 13u + -9u = 4u
4u = 20 + 9u + -9u

Combine like terms: 9u + -9u = 0
4u = 20 + 0
4u = 20

Divide each side by '4'.
u = 5

Simplifying
u = 5

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