B+4=7.7

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Solution for B+4=7.7 equation: 


Simplifying
B + 4 = 7.7

Reorder the terms:
4 + B = 7.7

Solving
4 + B = 7.7

Solving for variable 'B'.

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

Add '-4' to each side of the equation.
4 + -4 + B = 7.7 + -4

Combine like terms: 4 + -4 = 0
0 + B = 7.7 + -4
B = 7.7 + -4

Combine like terms: 7.7 + -4 = 3.7
B = 3.7

Simplifying
B = 3.7

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