18u-7u-7u=20

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Solution for 18u-7u-7u=20 equation: 


Simplifying
18u + -7u + -7u = 20

Combine like terms: 18u + -7u = 11u
11u + -7u = 20

Combine like terms: 11u + -7u = 4u
4u = 20

Solving
4u = 20

Solving for variable 'u'.

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

Divide each side by '4'.
u = 5

Simplifying
u = 5

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