-4(2b+4)+(9b-9)=0

Solution for -4(2b+4)+(9b-9)=0 equation:

Simplifying
-4(2b + 4) + (9b + -9) = 0

Reorder the terms:
-4(4 + 2b) + (9b + -9) = 0
(4 * -4 + 2b * -4) + (9b + -9) = 0
(-16 + -8b) + (9b + -9) = 0

Reorder the terms:
-16 + -8b + (-9 + 9b) = 0

Remove parenthesis around (-9 + 9b)
-16 + -8b + -9 + 9b = 0

Reorder the terms:
-16 + -9 + -8b + 9b = 0

Combine like terms: -16 + -9 = -25
-25 + -8b + 9b = 0

Combine like terms: -8b + 9b = 1b
-25 + 1b = 0

Solving
-25 + 1b = 0

Solving for variable 'b'.

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

Add '25' to each side of the equation.
-25 + 25 + 1b = 0 + 25

Combine like terms: -25 + 25 = 0
0 + 1b = 0 + 25
1b = 0 + 25

Combine like terms: 0 + 25 = 25
1b = 25

Divide each side by '1'.
b = 25

Simplifying
b = 25