5=3.1a-1

Solution for 5=3.1a-1 equation:

Simplifying
5 = 3.1a + -1

Reorder the terms:
5 = -1 + 3.1a

Solving
5 = -1 + 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.
5 + -3.1a = -1 + 3.1a + -3.1a

Combine like terms: 3.1a + -3.1a = 0.0
5 + -3.1a = -1 + 0.0
5 + -3.1a = -1

Add '-5' to each side of the equation.
5 + -5 + -3.1a = -1 + -5

Combine like terms: 5 + -5 = 0
0 + -3.1a = -1 + -5
-3.1a = -1 + -5

Combine like terms: -1 + -5 = -6
-3.1a = -6

Divide each side by '-3.1'.
a = 1.935483871

Simplifying
a = 1.935483871