91=1a

Solution for 91=1a equation:

Simplifying
91 = 1a

Solving
91 = 1a

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.
91 + -1a = 1a + -1a

Combine like terms: 1a + -1a = 0
91 + -1a = 0

Add '-91' to each side of the equation.
91 + -91 + -1a = 0 + -91

Combine like terms: 91 + -91 = 0
0 + -1a = 0 + -91
-1a = 0 + -91

Combine like terms: 0 + -91 = -91
-1a = -91

Divide each side by '-1'.
a = 91

Simplifying
a = 91