(9b-8)-4(2b+3)=-5

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Solution for (9b-8)-4(2b+3)=-5 equation:


Simplifying
(9b + -8) + -4(2b + 3) = -5

Reorder the terms:
(-8 + 9b) + -4(2b + 3) = -5

Remove parenthesis around (-8 + 9b)
-8 + 9b + -4(2b + 3) = -5

Reorder the terms:
-8 + 9b + -4(3 + 2b) = -5
-8 + 9b + (3 * -4 + 2b * -4) = -5
-8 + 9b + (-12 + -8b) = -5

Reorder the terms:
-8 + -12 + 9b + -8b = -5

Combine like terms: -8 + -12 = -20
-20 + 9b + -8b = -5

Combine like terms: 9b + -8b = 1b
-20 + 1b = -5

Solving
-20 + 1b = -5

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 = -5 + 20

Combine like terms: -20 + 20 = 0
0 + 1b = -5 + 20
1b = -5 + 20

Combine like terms: -5 + 20 = 15
1b = 15

Divide each side by '1'.
b = 15

Simplifying
b = 15

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