111=13+a

Solution for 111=13+a equation:

Simplifying
111 = 13 + a

Solving
111 = 13 + 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.
111 + -1a = 13 + a + -1a

Combine like terms: a + -1a = 0
111 + -1a = 13 + 0
111 + -1a = 13

Add '-111' to each side of the equation.
111 + -111 + -1a = 13 + -111

Combine like terms: 111 + -111 = 0
0 + -1a = 13 + -111
-1a = 13 + -111

Combine like terms: 13 + -111 = -98
-1a = -98

Divide each side by '-1'.
a = 98

Simplifying
a = 98