15-b=b

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Solution for 15-b=b equation:


Simplifying
15 + -1b = b

Solving
15 + -1b = b

Solving for variable 'b'.

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

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

Combine like terms: -1b + -1b = -2b
15 + -2b = b + -1b

Combine like terms: b + -1b = 0
15 + -2b = 0

Add '-15' to each side of the equation.
15 + -15 + -2b = 0 + -15

Combine like terms: 15 + -15 = 0
0 + -2b = 0 + -15
-2b = 0 + -15

Combine like terms: 0 + -15 = -15
-2b = -15

Divide each side by '-2'.
b = 7.5

Simplifying
b = 7.5

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