How do you solve for b in $P=a+b+c$ ?

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Answer 1 · 2016-05-01T14:02:14

Notice that there are 3 terms on the right hand side. You want to isolate b in order to solve for it.

I find it less confusing to place term containing the variable you want on the left hand side. (As long as it is positive).

$a + b + c = P$
To isolate $b$ subtract $a$ and $c$ from both sides

$b = P - a - c$

How do you solve for b in P=a+b+cP=a+b+c?