3b+5-b=4b

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Solution for 3b+5-b=4b equation:


Simplifying
3b + 5 + -1b = 4b

Reorder the terms:
5 + 3b + -1b = 4b

Combine like terms: 3b + -1b = 2b
5 + 2b = 4b

Solving
5 + 2b = 4b

Solving for variable 'b'.

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

Add '-4b' to each side of the equation.
5 + 2b + -4b = 4b + -4b

Combine like terms: 2b + -4b = -2b
5 + -2b = 4b + -4b

Combine like terms: 4b + -4b = 0
5 + -2b = 0

Add '-5' to each side of the equation.
5 + -5 + -2b = 0 + -5

Combine like terms: 5 + -5 = 0
0 + -2b = 0 + -5
-2b = 0 + -5

Combine like terms: 0 + -5 = -5
-2b = -5

Divide each side by '-2'.
b = 2.5

Simplifying
b = 2.5

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