2B+5B-2=19

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Solution for 2B+5B-2=19 equation: 


Simplifying
2B + 5B + -2 = 19

Reorder the terms:
-2 + 2B + 5B = 19

Combine like terms: 2B + 5B = 7B
-2 + 7B = 19

Solving
-2 + 7B = 19

Solving for variable 'B'.

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

Add '2' to each side of the equation.
-2 + 2 + 7B = 19 + 2

Combine like terms: -2 + 2 = 0
0 + 7B = 19 + 2
7B = 19 + 2

Combine like terms: 19 + 2 = 21
7B = 21

Divide each side by '7'.
B = 3

Simplifying
B = 3

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