7u-2u=3u

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Solution for 7u-2u=3u equation: 


Simplifying
7u + -2u = 3u

Combine like terms: 7u + -2u = 5u
5u = 3u

Solving
5u = 3u

Solving for variable 'u'.

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

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

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

Combine like terms: 3u + -3u = 0
2u = 0

Divide each side by '2'.
u = 0

Simplifying
u = 0

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