B-3a=15

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Solution for B-3a=15 equation: 


Simplifying
B + -3a = 15

Solving
B + -3a = 15

Solving for variable 'B'.

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

Add '3a' to each side of the equation.
B + -3a + 3a = 15 + 3a

Combine like terms: -3a + 3a = 0
B + 0 = 15 + 3a
B = 15 + 3a

Simplifying
B = 15 + 3a

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