2-3=a

Solution for 2-3=a equation:

Simplifying
2 + -3 = a

Combine like terms: 2 + -3 = -1
-1 = a

Solving
-1 = 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.
-1 + -1a = a + -1a

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

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

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

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

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

Simplifying
a = -1