Respuesta :

Having the following equation given in the problem:

[tex]-f+B=n[/tex]

You can solve for "B" by applying the Addition property of Equality. This property states the following:

[tex]If\text{ }A=B,\text{ then }A+C=B+C[/tex]

Then, based on that Addition property of Equality, you can add "f" to both sides of the equation.

Therefore, you get that the equation solved for "B" is the following:

[tex]\begin{gathered} -f+B+(f)=n+(f) \\ B=n+f \end{gathered}[/tex]

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