-7u=-9u+8

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Solution for -7u=-9u+8 equation: 


Simplifying
-7u = -9u + 8

Reorder the terms:
-7u = 8 + -9u

Solving
-7u = 8 + -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.
-7u + 9u = 8 + -9u + 9u

Combine like terms: -7u + 9u = 2u
2u = 8 + -9u + 9u

Combine like terms: -9u + 9u = 0
2u = 8 + 0
2u = 8

Divide each side by '2'.
u = 4

Simplifying
u = 4

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