z+3u=15

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Solution for z+3u=15 equation: 


Simplifying
z + 3u = 15

Reorder the terms:
3u + z = 15

Solving
3u + z = 15

Solving for variable 'u'.

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

Add '-1z' to each side of the equation.
3u + z + -1z = 15 + -1z

Combine like terms: z + -1z = 0
3u + 0 = 15 + -1z
3u = 15 + -1z

Divide each side by '3'.
u = 5 + -0.3333333333z

Simplifying
u = 5 + -0.3333333333z

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