15=-1b+4

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Solution for 15=-1b+4 equation:


Simplifying
15 = -1b + 4

Reorder the terms:
15 = 4 + -1b

Solving
15 = 4 + -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.
15 + b = 4 + -1b + b

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

Add '-15' to each side of the equation.
15 + -15 + b = 4 + -15

Combine like terms: 15 + -15 = 0
0 + b = 4 + -15
b = 4 + -15

Combine like terms: 4 + -15 = -11
b = -11

Simplifying
b = -11

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