16u=9u+21

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Solution for 16u=9u+21 equation:


Simplifying
16u = 9u + 21

Reorder the terms:
16u = 21 + 9u

Solving
16u = 21 + 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.
16u + -9u = 21 + 9u + -9u

Combine like terms: 16u + -9u = 7u
7u = 21 + 9u + -9u

Combine like terms: 9u + -9u = 0
7u = 21 + 0
7u = 21

Divide each side by '7'.
u = 3

Simplifying
u = 3

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