-4(-5+8b)=

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


Simplifying
-4(-5 + 8b) = 0
(-5 * -4 + 8b * -4) = 0
(20 + -32b) = 0

Solving
20 + -32b = 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 + -32b = 0 + -20

Combine like terms: 20 + -20 = 0
0 + -32b = 0 + -20
-32b = 0 + -20

Combine like terms: 0 + -20 = -20
-32b = -20

Divide each side by '-32'.
b = 0.625

Simplifying
b = 0.625

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