13u+4u-15u-u=20

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Solution for 13u+4u-15u-u=20 equation: 


Simplifying
13u + 4u + -15u + -1u = 20

Combine like terms: 13u + 4u = 17u
17u + -15u + -1u = 20

Combine like terms: 17u + -15u = 2u
2u + -1u = 20

Combine like terms: 2u + -1u = 1u
1u = 20

Solving
1u = 20

Solving for variable 'u'.

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

Divide each side by '1'.
u = 20

Simplifying
u = 20

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