4=-(b-1)

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Solution for 4=-(b-1) equation:


Simplifying
4 = -1(b + -1)

Reorder the terms:
4 = -1(-1 + b)
4 = (-1 * -1 + b * -1)
4 = (1 + -1b)

Solving
4 = 1 + -1b

Solving for variable 'b'.

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

Add 'b' to each side of the equation.
4 + b = 1 + -1b + b

Combine like terms: -1b + b = 0
4 + b = 1 + 0
4 + b = 1

Add '-4' to each side of the equation.
4 + -4 + b = 1 + -4

Combine like terms: 4 + -4 = 0
0 + b = 1 + -4
b = 1 + -4

Combine like terms: 1 + -4 = -3
b = -3

Simplifying
b = -3

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