-4(2b+1)+(9b-9)=0

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Solution for -4(2b+1)+(9b-9)=0 equation:


Simplifying
-4(2b + 1) + (9b + -9) = 0

Reorder the terms:
-4(1 + 2b) + (9b + -9) = 0
(1 * -4 + 2b * -4) + (9b + -9) = 0
(-4 + -8b) + (9b + -9) = 0

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

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

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

Combine like terms: -4 + -9 = -13
-13 + -8b + 9b = 0

Combine like terms: -8b + 9b = 1b
-13 + 1b = 0

Solving
-13 + 1b = 0

Solving for variable 'b'.

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

Add '13' to each side of the equation.
-13 + 13 + 1b = 0 + 13

Combine like terms: -13 + 13 = 0
0 + 1b = 0 + 13
1b = 0 + 13

Combine like terms: 0 + 13 = 13
1b = 13

Divide each side by '1'.
b = 13

Simplifying
b = 13

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