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

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


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

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

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

Remove parenthesis around (-4 + 9b)
-16 + -8b + -4 + 9b = 0

Reorder the terms:
-16 + -4 + -8b + 9b = 0

Combine like terms: -16 + -4 = -20
-20 + -8b + 9b = 0

Combine like terms: -8b + 9b = 1b
-20 + 1b = 0

Solving
-20 + 1b = 0

Solving for variable 'b'.

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

Add '20' to each side of the equation.
-20 + 20 + 1b = 0 + 20

Combine like terms: -20 + 20 = 0
0 + 1b = 0 + 20
1b = 0 + 20

Combine like terms: 0 + 20 = 20
1b = 20

Divide each side by '1'.
b = 20

Simplifying
b = 20

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