-42=6a

Solution for -42=6a equation:

Simplifying
-42 = 6a

Solving
-42 = 6a

Solving for variable 'a'.

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

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

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

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

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

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

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

Simplifying
a = -7