Respuesta :
Answer:
[tex]\huge \boxed{a= P-b-c}[/tex]
Step-by-step explanation:
[tex]P=a+b+c[/tex]
Subtracting b and c from both sides.
[tex]P-b-c=a+b+c-b-c[/tex]
Simplifying both sides.
[tex]P-b-c=a[/tex]
P=a+b+c
Subtracting b and c from both sides.
P-b-c=a+b+c-c
Simplifying both sides.
P-b-c=a