1.3(8-b)+3.75=-5.2

Solution for 1.3(8-b)+3.75=-5.2 equation:

Simplifying
1.3(8 + -1b) + 3.75 = -5.2
(8 * 1.3 + -1b * 1.3) + 3.75 = -5.2
(10.4 + -1.3b) + 3.75 = -5.2

Reorder the terms:
10.4 + 3.75 + -1.3b = -5.2

Combine like terms: 10.4 + 3.75 = 14.15
14.15 + -1.3b = -5.2

Solving
14.15 + -1.3b = -5.2

Solving for variable 'b'.

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

Add '-14.15' to each side of the equation.
14.15 + -14.15 + -1.3b = -5.2 + -14.15

Combine like terms: 14.15 + -14.15 = 0.00
0.00 + -1.3b = -5.2 + -14.15
-1.3b = -5.2 + -14.15

Combine like terms: -5.2 + -14.15 = -19.35
-1.3b = -19.35

Divide each side by '-1.3'.
b = 14.88461538

Simplifying
b = 14.88461538