15-b=4b+5

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Solution for 15-b=4b+5 equation:


Simplifying
15 + -1b = 4b + 5

Reorder the terms:
15 + -1b = 5 + 4b

Solving
15 + -1b = 5 + 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.
15 + -1b + -4b = 5 + 4b + -4b

Combine like terms: -1b + -4b = -5b
15 + -5b = 5 + 4b + -4b

Combine like terms: 4b + -4b = 0
15 + -5b = 5 + 0
15 + -5b = 5

Add '-15' to each side of the equation.
15 + -15 + -5b = 5 + -15

Combine like terms: 15 + -15 = 0
0 + -5b = 5 + -15
-5b = 5 + -15

Combine like terms: 5 + -15 = -10
-5b = -10

Divide each side by '-5'.
b = 2

Simplifying
b = 2

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