30=-3u

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Solution for 30=-3u equation:


Simplifying
30 = -3u

Solving
30 = -3u

Solving for variable 'u'.

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

Add '3u' to each side of the equation.
30 + 3u = -3u + 3u

Combine like terms: -3u + 3u = 0
30 + 3u = 0

Add '-30' to each side of the equation.
30 + -30 + 3u = 0 + -30

Combine like terms: 30 + -30 = 0
0 + 3u = 0 + -30
3u = 0 + -30

Combine like terms: 0 + -30 = -30
3u = -30

Divide each side by '3'.
u = -10

Simplifying
u = -10

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