a+3.1=6.6+4a

Solution for a+3.1=6.6+4a equation:

Simplifying
a + 3.1 = 6.6 + 4a

Reorder the terms:
3.1 + a = 6.6 + 4a

Solving
3.1 + a = 6.6 + 4a

Solving for variable 'a'.

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

Add '-4a' to each side of the equation.
3.1 + a + -4a = 6.6 + 4a + -4a

Combine like terms: a + -4a = -3a
3.1 + -3a = 6.6 + 4a + -4a

Combine like terms: 4a + -4a = 0
3.1 + -3a = 6.6 + 0
3.1 + -3a = 6.6

Add '-3.1' to each side of the equation.
3.1 + -3.1 + -3a = 6.6 + -3.1

Combine like terms: 3.1 + -3.1 = 0.0
0.0 + -3a = 6.6 + -3.1
-3a = 6.6 + -3.1

Combine like terms: 6.6 + -3.1 = 3.5
-3a = 3.5

Divide each side by '-3'.
a = -1.166666667

Simplifying
a = -1.166666667