-4(2b+4)+(9b-5)=0

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Solution for -4(2b+4)+(9b-5)=0 equation:


Simplifying
-4(2b + 4) + (9b + -5) = 0

Reorder the terms:
-4(4 + 2b) + (9b + -5) = 0
(4 * -4 + 2b * -4) + (9b + -5) = 0
(-16 + -8b) + (9b + -5) = 0

Reorder the terms:
-16 + -8b + (-5 + 9b) = 0

Remove parenthesis around (-5 + 9b)
-16 + -8b + -5 + 9b = 0

Reorder the terms:
-16 + -5 + -8b + 9b = 0

Combine like terms: -16 + -5 = -21
-21 + -8b + 9b = 0

Combine like terms: -8b + 9b = 1b
-21 + 1b = 0

Solving
-21 + 1b = 0

Solving for variable 'b'.

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

Add '21' to each side of the equation.
-21 + 21 + 1b = 0 + 21

Combine like terms: -21 + 21 = 0
0 + 1b = 0 + 21
1b = 0 + 21

Combine like terms: 0 + 21 = 21
1b = 21

Divide each side by '1'.
b = 21

Simplifying
b = 21

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