7B+6B-84=85

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Solution for 7B+6B-84=85 equation: 


Simplifying
7B + 6B + -84 = 85

Reorder the terms:
-84 + 7B + 6B = 85

Combine like terms: 7B + 6B = 13B
-84 + 13B = 85

Solving
-84 + 13B = 85

Solving for variable 'B'.

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

Add '84' to each side of the equation.
-84 + 84 + 13B = 85 + 84

Combine like terms: -84 + 84 = 0
0 + 13B = 85 + 84
13B = 85 + 84

Combine like terms: 85 + 84 = 169
13B = 169

Divide each side by '13'.
B = 13

Simplifying
B = 13

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