25=2u-9

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Solution for 25=2u-9 equation:


Simplifying
25 = 2u + -9

Reorder the terms:
25 = -9 + 2u

Solving
25 = -9 + 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.
25 + -2u = -9 + 2u + -2u

Combine like terms: 2u + -2u = 0
25 + -2u = -9 + 0
25 + -2u = -9

Add '-25' to each side of the equation.
25 + -25 + -2u = -9 + -25

Combine like terms: 25 + -25 = 0
0 + -2u = -9 + -25
-2u = -9 + -25

Combine like terms: -9 + -25 = -34
-2u = -34

Divide each side by '-2'.
u = 17

Simplifying
u = 17

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