5u-9=7u-9

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Solution for 5u-9=7u-9 equation:


Simplifying
5u + -9 = 7u + -9

Reorder the terms:
-9 + 5u = 7u + -9

Reorder the terms:
-9 + 5u = -9 + 7u

Add '9' to each side of the equation.
-9 + 9 + 5u = -9 + 9 + 7u

Combine like terms: -9 + 9 = 0
0 + 5u = -9 + 9 + 7u
5u = -9 + 9 + 7u

Combine like terms: -9 + 9 = 0
5u = 0 + 7u
5u = 7u

Solving
5u = 7u

Solving for variable 'u'.

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

Add '-7u' to each side of the equation.
5u + -7u = 7u + -7u

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

Combine like terms: 7u + -7u = 0
-2u = 0

Divide each side by '-2'.
u = 0

Simplifying
u = 0

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