(2.4b+5.6)=-11.2

Solution for (2.4b+5.6)=-11.2 equation:

Simplifying
(2.4b + 5.6) = -11.2

Reorder the terms:
(5.6 + 2.4b) = -11.2

Remove parenthesis around (5.6 + 2.4b)
5.6 + 2.4b = -11.2

Solving
5.6 + 2.4b = -11.2

Solving for variable 'b'.

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

Add '-5.6' to each side of the equation.
5.6 + -5.6 + 2.4b = -11.2 + -5.6

Combine like terms: 5.6 + -5.6 = 0.0
0.0 + 2.4b = -11.2 + -5.6
2.4b = -11.2 + -5.6

Combine like terms: -11.2 + -5.6 = -16.8
2.4b = -16.8

Divide each side by '2.4'.
b = -7

Simplifying
b = -7