u=7(3n+30)+9(n+1)

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Solution for u=7(3n+30)+9(n+1) equation: 


Simplifying
u = 7(3n + 30) + 9(n + 1)

Reorder the terms:
u = 7(30 + 3n) + 9(n + 1)
u = (30 * 7 + 3n * 7) + 9(n + 1)
u = (210 + 21n) + 9(n + 1)

Reorder the terms:
u = 210 + 21n + 9(1 + n)
u = 210 + 21n + (1 * 9 + n * 9)
u = 210 + 21n + (9 + 9n)

Reorder the terms:
u = 210 + 9 + 21n + 9n

Combine like terms: 210 + 9 = 219
u = 219 + 21n + 9n

Combine like terms: 21n + 9n = 30n
u = 219 + 30n

Solving
u = 219 + 30n

Solving for variable 'u'.

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

Simplifying
u = 219 + 30n

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