(28b-1)-9(3b+4)=-4

Solution for (28b-1)-9(3b+4)=-4 equation:

Simplifying
(28b + -1) + -9(3b + 4) = -4

Reorder the terms:
(-1 + 28b) + -9(3b + 4) = -4

Remove parenthesis around (-1 + 28b)
-1 + 28b + -9(3b + 4) = -4

Reorder the terms:
-1 + 28b + -9(4 + 3b) = -4
-1 + 28b + (4 * -9 + 3b * -9) = -4
-1 + 28b + (-36 + -27b) = -4

Reorder the terms:
-1 + -36 + 28b + -27b = -4

Combine like terms: -1 + -36 = -37
-37 + 28b + -27b = -4

Combine like terms: 28b + -27b = 1b
-37 + 1b = -4

Solving
-37 + 1b = -4

Solving for variable 'b'.

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

Add '37' to each side of the equation.
-37 + 37 + 1b = -4 + 37

Combine like terms: -37 + 37 = 0
0 + 1b = -4 + 37
1b = -4 + 37

Combine like terms: -4 + 37 = 33
1b = 33

Divide each side by '1'.
b = 33

Simplifying
b = 33