6=a+1+3

Solution for 6=a+1+3 equation:

Simplifying
6 = a + 1 + 3

Reorder the terms:
6 = 1 + 3 + a

Combine like terms: 1 + 3 = 4
6 = 4 + a

Solving
6 = 4 + 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.
6 + -1a = 4 + a + -1a

Combine like terms: a + -1a = 0
6 + -1a = 4 + 0
6 + -1a = 4

Add '-6' to each side of the equation.
6 + -6 + -1a = 4 + -6

Combine like terms: 6 + -6 = 0
0 + -1a = 4 + -6
-1a = 4 + -6

Combine like terms: 4 + -6 = -2
-1a = -2

Divide each side by '-1'.
a = 2

Simplifying
a = 2