-4(-5-b)=

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


Simplifying
-4(-5 + -1b) = 0
(-5 * -4 + -1b * -4) = 0
(20 + 4b) = 0

Solving
20 + 4b = 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 + 4b = 0 + -20

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

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

Divide each side by '4'.
b = -5

Simplifying
b = -5

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