55=2u+15

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Solution for 55=2u+15 equation:


Simplifying
55 = 2u + 15

Reorder the terms:
55 = 15 + 2u

Solving
55 = 15 + 2u

Solving for variable 'u'.

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

Add '-2u' to each side of the equation.
55 + -2u = 15 + 2u + -2u

Combine like terms: 2u + -2u = 0
55 + -2u = 15 + 0
55 + -2u = 15

Add '-55' to each side of the equation.
55 + -55 + -2u = 15 + -55

Combine like terms: 55 + -55 = 0
0 + -2u = 15 + -55
-2u = 15 + -55

Combine like terms: 15 + -55 = -40
-2u = -40

Divide each side by '-2'.
u = 20

Simplifying
u = 20

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