B+7=9+4

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Solution for B+7=9+4 equation: 


Simplifying
B + 7 = 9 + 4

Reorder the terms:
7 + B = 9 + 4

Combine like terms: 9 + 4 = 13
7 + B = 13

Solving
7 + B = 13

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 + B = 13 + -7

Combine like terms: 7 + -7 = 0
0 + B = 13 + -7
B = 13 + -7

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

Simplifying
B = 6

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