(u-5)*7=42

Solution for (u-5)*7=42 equation:

Simplifying
(u + -5) * 7 = 42

Reorder the terms:
(-5 + u) * 7 = 42

Reorder the terms for easier multiplication:
7(-5 + u) = 42
(-5 * 7 + u * 7) = 42
(-35 + 7u) = 42

Solving
-35 + 7u = 42

Solving for variable 'u'.

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

Add '35' to each side of the equation.
-35 + 35 + 7u = 42 + 35

Combine like terms: -35 + 35 = 0
0 + 7u = 42 + 35
7u = 42 + 35

Combine like terms: 42 + 35 = 77
7u = 77

Divide each side by '7'.
u = 11

Simplifying
u = 11