-6*3=a

Solution for -6*3=a equation:

Simplifying
-6 * 3 = a

Multiply -6 * 3
-18 = a

Solving
-18 = a

Solving for variable 'a'.

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

Add '-1a' to each side of the equation.
-18 + -1a = a + -1a

Combine like terms: a + -1a = 0
-18 + -1a = 0

Add '18' to each side of the equation.
-18 + 18 + -1a = 0 + 18

Combine like terms: -18 + 18 = 0
0 + -1a = 0 + 18
-1a = 0 + 18

Combine like terms: 0 + 18 = 18
-1a = 18

Divide each side by '-1'.
a = -18

Simplifying
a = -18