31=3.1a

Solution for 31=3.1a equation:

Simplifying
31 = 3.1a

Solving
31 = 3.1a

Solving for variable 'a'.

Move all terms containing a to the left, all other terms to the right.

Add '-3.1a' to each side of the equation.
31 + -3.1a = 3.1a + -3.1a

Combine like terms: 3.1a + -3.1a = 0.0
31 + -3.1a = 0.0

Add '-31' to each side of the equation.
31 + -31 + -3.1a = 0.0 + -31

Combine like terms: 31 + -31 = 0
0 + -3.1a = 0.0 + -31
-3.1a = 0.0 + -31

Combine like terms: 0.0 + -31 = -31
-3.1a = -31

Divide each side by '-3.1'.
a = 10

Simplifying
a = 10