5(b-1)=-20

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Solution for 5(b-1)=-20 equation: 


Simplifying
5(b + -1) = -20

Reorder the terms:
5(-1 + b) = -20
(-1 * 5 + b * 5) = -20
(-5 + 5b) = -20

Solving
-5 + 5b = -20

Solving for variable 'b'.

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

Add '5' to each side of the equation.
-5 + 5 + 5b = -20 + 5

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

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

Divide each side by '5'.
b = -3

Simplifying
b = -3

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