2u-9=-7u

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Solution for 2u-9=-7u equation:


Simplifying
2u + -9 = -7u

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

Solving
-9 + 2u = -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.
-9 + 2u + 7u = -7u + 7u

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

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

Add '9' to each side of the equation.
-9 + 9 + 9u = 0 + 9

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

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

Divide each side by '9'.
u = 1

Simplifying
u = 1

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