-42=6u

Solution for -42=6u equation:

Simplifying
-42 = 6u

Solving
-42 = 6u

Solving for variable 'u'.

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

Add '-6u' to each side of the equation.
-42 + -6u = 6u + -6u

Combine like terms: 6u + -6u = 0
-42 + -6u = 0

Add '42' to each side of the equation.
-42 + 42 + -6u = 0 + 42

Combine like terms: -42 + 42 = 0
0 + -6u = 0 + 42
-6u = 0 + 42

Combine like terms: 0 + 42 = 42
-6u = 42

Divide each side by '-6'.
u = -7

Simplifying
u = -7