9+10=a

Solution for 9+10=a equation:

Simplifying
9 + 10 = a

Combine like terms: 9 + 10 = 19
19 = a

Solving
19 = 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.
19 + -1a = a + -1a

Combine like terms: a + -1a = 0
19 + -1a = 0

Add '-19' to each side of the equation.
19 + -19 + -1a = 0 + -19

Combine like terms: 19 + -19 = 0
0 + -1a = 0 + -19
-1a = 0 + -19

Combine like terms: 0 + -19 = -19
-1a = -19

Divide each side by '-1'.
a = 19

Simplifying
a = 19