How do you solve for a in $f=np+a$ ?

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Answer 1 · 2017-04-08T02:31:46

See the entire solution process below:

Subtract $color(red)(np)$ from each side of the equation to solve for $a$ while keeping the equation balanced:

$f - color(red)(np) = np + a - color(red)(np)$

$f - np = np - color(red)(np) + a$

$f - np = 0 + a$

$f - np = a$

$a = f - np$

How do you solve for a in f=np+af=np+a?