-7u+9=-5u

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


Simplifying
-7u + 9 = -5u

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

Solving
9 + -7u = -5u

Solving for variable 'u'.

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

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

Combine like terms: -7u + 5u = -2u
9 + -2u = -5u + 5u

Combine like terms: -5u + 5u = 0
9 + -2u = 0

Add '-9' to each side of the equation.
9 + -9 + -2u = 0 + -9

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

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

Divide each side by '-2'.
u = 4.5

Simplifying
u = 4.5

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