2-a=3+a

Solution for 2-a=3+a equation:

Simplifying
2 + -1a = 3 + a

Solving
2 + -1a = 3 + 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.
2 + -1a + -1a = 3 + a + -1a

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

Combine like terms: a + -1a = 0
2 + -2a = 3 + 0
2 + -2a = 3

Add '-2' to each side of the equation.
2 + -2 + -2a = 3 + -2

Combine like terms: 2 + -2 = 0
0 + -2a = 3 + -2
-2a = 3 + -2

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

Divide each side by '-2'.
a = -0.5

Simplifying
a = -0.5