a+B=7

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Solution for a+B=7 equation: 


Simplifying
a + B = 7

Reorder the terms:
B + a = 7

Solving
B + a = 7

Solving for variable 'B'.

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

Add '-1a' to each side of the equation.
B + a + -1a = 7 + -1a

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

Simplifying
B = 7 + -1a

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