13u+9v-4u=

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Solution for 13u+9v-4u= equation: 


Simplifying
13u + 9v + -4u = 0

Reorder the terms:
13u + -4u + 9v = 0

Combine like terms: 13u + -4u = 9u
9u + 9v = 0

Solving
9u + 9v = 0

Solving for variable 'u'.

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

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

Combine like terms: 9v + -9v = 0
9u + 0 = 0 + -9v
9u = 0 + -9v
Remove the zero:
9u = -9v

Divide each side by '9'.
u = -1v

Simplifying
u = -1v

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