4B+3B-1=20

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Solution for 4B+3B-1=20 equation: 


Simplifying
4B + 3B + -1 = 20

Reorder the terms:
-1 + 4B + 3B = 20

Combine like terms: 4B + 3B = 7B
-1 + 7B = 20

Solving
-1 + 7B = 20

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 + 7B = 20 + 1

Combine like terms: -1 + 1 = 0
0 + 7B = 20 + 1
7B = 20 + 1

Combine like terms: 20 + 1 = 21
7B = 21

Divide each side by '7'.
B = 3

Simplifying
B = 3

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