u=7(2n+35)+9(n+1)

Solution for u=7(2n+35)+9(n+1) equation:

Simplifying
u = 7(2n + 35) + 9(n + 1)

Reorder the terms:
u = 7(35 + 2n) + 9(n + 1)
u = (35 * 7 + 2n * 7) + 9(n + 1)
u = (245 + 14n) + 9(n + 1)

Reorder the terms:
u = 245 + 14n + 9(1 + n)
u = 245 + 14n + (1 * 9 + n * 9)
u = 245 + 14n + (9 + 9n)

Reorder the terms:
u = 245 + 9 + 14n + 9n

Combine like terms: 245 + 9 = 254
u = 254 + 14n + 9n

Combine like terms: 14n + 9n = 23n
u = 254 + 23n

Solving
u = 254 + 23n

Solving for variable 'u'.

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

Simplifying
u = 254 + 23n