15-2b=a

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Solution for 15-2b=a equation: 


Simplifying
15 + -2b = a

Solving
15 + -2b = a

Solving for variable 'b'.

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

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

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

Divide each side by '-2'.
b = 7.5 + -0.5a

Simplifying
b = 7.5 + -0.5a

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