2u+9-6u=-9

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Solution for 2u+9-6u=-9 equation:


Simplifying
2u + 9 + -6u = -9

Reorder the terms:
9 + 2u + -6u = -9

Combine like terms: 2u + -6u = -4u
9 + -4u = -9

Solving
9 + -4u = -9

Solving for variable 'u'.

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

Add '-9' to each side of the equation.
9 + -9 + -4u = -9 + -9

Combine like terms: 9 + -9 = 0
0 + -4u = -9 + -9
-4u = -9 + -9

Combine like terms: -9 + -9 = -18
-4u = -18

Divide each side by '-4'.
u = 4.5

Simplifying
u = 4.5

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