28=-7u

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Solution for 28=-7u equation:


Simplifying
28 = -7u

Solving
28 = -7u

Solving for variable 'u'.

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

Add '7u' to each side of the equation.
28 + 7u = -7u + 7u

Combine like terms: -7u + 7u = 0
28 + 7u = 0

Add '-28' to each side of the equation.
28 + -28 + 7u = 0 + -28

Combine like terms: 28 + -28 = 0
0 + 7u = 0 + -28
7u = 0 + -28

Combine like terms: 0 + -28 = -28
7u = -28

Divide each side by '7'.
u = -4

Simplifying
u = -4

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