(4b-4)-5=-20

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Solution for (4b-4)-5=-20 equation:


Simplifying
(4b + -4) + -5 = -20

Reorder the terms:
(-4 + 4b) + -5 = -20

Remove parenthesis around (-4 + 4b)
-4 + 4b + -5 = -20

Reorder the terms:
-4 + -5 + 4b = -20

Combine like terms: -4 + -5 = -9
-9 + 4b = -20

Solving
-9 + 4b = -20

Solving for variable 'b'.

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

Add '9' to each side of the equation.
-9 + 9 + 4b = -20 + 9

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

Combine like terms: -20 + 9 = -11
4b = -11

Divide each side by '4'.
b = -2.75

Simplifying
b = -2.75

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