3B+2B-1=19

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Solution for 3B+2B-1=19 equation: 


Simplifying
3B + 2B + -1 = 19

Reorder the terms:
-1 + 3B + 2B = 19

Combine like terms: 3B + 2B = 5B
-1 + 5B = 19

Solving
-1 + 5B = 19

Solving for variable 'B'.

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

Add '1' to each side of the equation.
-1 + 1 + 5B = 19 + 1

Combine like terms: -1 + 1 = 0
0 + 5B = 19 + 1
5B = 19 + 1

Combine like terms: 19 + 1 = 20
5B = 20

Divide each side by '5'.
B = 4

Simplifying
B = 4

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