-9u-8+5u=28

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Solution for -9u-8+5u=28 equation:


Simplifying
-9u + -8 + 5u = 28

Reorder the terms:
-8 + -9u + 5u = 28

Combine like terms: -9u + 5u = -4u
-8 + -4u = 28

Solving
-8 + -4u = 28

Solving for variable 'u'.

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

Add '8' to each side of the equation.
-8 + 8 + -4u = 28 + 8

Combine like terms: -8 + 8 = 0
0 + -4u = 28 + 8
-4u = 28 + 8

Combine like terms: 28 + 8 = 36
-4u = 36

Divide each side by '-4'.
u = -9

Simplifying
u = -9

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