Answer:
The value of the formula for b is [tex]2S-a-c=b[/tex].
Step-by-step explanation:
Consider the provided formula.
[tex]2S=a+b+c[/tex]
We need to solve the formula for b.
Subtract both sides by a.
[tex]2S-a=a-a+b+c[/tex]
[tex]2S-a=b+c[/tex]
Subtract both sides by c.
[tex]2S-a-c=b+c-c[/tex]
[tex]2S-a-c=b[/tex]
Hence, the value of the formula for b is [tex]2S-a-c=b[/tex].
