7u-2=9u

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Solution for 7u-2=9u equation:


Simplifying
7u + -2 = 9u

Reorder the terms:
-2 + 7u = 9u

Solving
-2 + 7u = 9u

Solving for variable 'u'.

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

Add '-9u' to each side of the equation.
-2 + 7u + -9u = 9u + -9u

Combine like terms: 7u + -9u = -2u
-2 + -2u = 9u + -9u

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

Add '2' to each side of the equation.
-2 + 2 + -2u = 0 + 2

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

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

Divide each side by '-2'.
u = -1

Simplifying
u = -1

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