(1.3a+2.4)+(-6.1a-3.2)=

Solution for (1.3a+2.4)+(-6.1a-3.2)= equation:

Simplifying
(1.3a + 2.4) + (-6.1a + -3.2) = 0

Reorder the terms:
(2.4 + 1.3a) + (-6.1a + -3.2) = 0

Remove parenthesis around (2.4 + 1.3a)
2.4 + 1.3a + (-6.1a + -3.2) = 0

Reorder the terms:
2.4 + 1.3a + (-3.2 + -6.1a) = 0

Remove parenthesis around (-3.2 + -6.1a)
2.4 + 1.3a + -3.2 + -6.1a = 0

Reorder the terms:
2.4 + -3.2 + 1.3a + -6.1a = 0

Combine like terms: 2.4 + -3.2 = -0.8
-0.8 + 1.3a + -6.1a = 0

Combine like terms: 1.3a + -6.1a = -4.8a
-0.8 + -4.8a = 0

Solving
-0.8 + -4.8a = 0

Solving for variable 'a'.

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

Add '0.8' to each side of the equation.
-0.8 + 0.8 + -4.8a = 0 + 0.8

Combine like terms: -0.8 + 0.8 = 0.0
0.0 + -4.8a = 0 + 0.8
-4.8a = 0 + 0.8

Combine like terms: 0 + 0.8 = 0.8
-4.8a = 0.8

Divide each side by '-4.8'.
a = -0.1666666667

Simplifying
a = -0.1666666667