b-1=15-3b

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Solution for b-1=15-3b equation:


Simplifying
b + -1 = 15 + -3b

Reorder the terms:
-1 + b = 15 + -3b

Solving
-1 + b = 15 + -3b

Solving for variable 'b'.

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

Add '3b' to each side of the equation.
-1 + b + 3b = 15 + -3b + 3b

Combine like terms: b + 3b = 4b
-1 + 4b = 15 + -3b + 3b

Combine like terms: -3b + 3b = 0
-1 + 4b = 15 + 0
-1 + 4b = 15

Add '1' to each side of the equation.
-1 + 1 + 4b = 15 + 1

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

Combine like terms: 15 + 1 = 16
4b = 16

Divide each side by '4'.
b = 4

Simplifying
b = 4

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