4B+3B-7=7

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Solution for 4B+3B-7=7 equation: 


Simplifying
4B + 3B + -7 = 7

Reorder the terms:
-7 + 4B + 3B = 7

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

Solving
-7 + 7B = 7

Solving for variable 'B'.

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

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

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

Combine like terms: 7 + 7 = 14
7B = 14

Divide each side by '7'.
B = 2

Simplifying
B = 2

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