3=28+8u

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Solution for 3=28+8u equation:


Simplifying
3 = 28 + 8u

Solving
3 = 28 + 8u

Solving for variable 'u'.

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

Add '-8u' to each side of the equation.
3 + -8u = 28 + 8u + -8u

Combine like terms: 8u + -8u = 0
3 + -8u = 28 + 0
3 + -8u = 28

Add '-3' to each side of the equation.
3 + -3 + -8u = 28 + -3

Combine like terms: 3 + -3 = 0
0 + -8u = 28 + -3
-8u = 28 + -3

Combine like terms: 28 + -3 = 25
-8u = 25

Divide each side by '-8'.
u = -3.125

Simplifying
u = -3.125

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