u=3(7n+32)+4(n+1)

Solution for u=3(7n+32)+4(n+1) equation:

Simplifying
u = 3(7n + 32) + 4(n + 1)

Reorder the terms:
u = 3(32 + 7n) + 4(n + 1)
u = (32 * 3 + 7n * 3) + 4(n + 1)
u = (96 + 21n) + 4(n + 1)

Reorder the terms:
u = 96 + 21n + 4(1 + n)
u = 96 + 21n + (1 * 4 + n * 4)
u = 96 + 21n + (4 + 4n)

Reorder the terms:
u = 96 + 4 + 21n + 4n

Combine like terms: 96 + 4 = 100
u = 100 + 21n + 4n

Combine like terms: 21n + 4n = 25n
u = 100 + 25n

Solving
u = 100 + 25n

Solving for variable 'u'.

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

Simplifying
u = 100 + 25n