Respuesta :

dasetka
           P = k + m + n   Subtract m from both sides
     P - m = k + n          Subtract n from both sides
P - m - n = k                Switch the sides to make it easier to read
            k = P - m - n
Noah11012
Start with P=k+m+n
P - m = k + n
P - m -n = k or K = p - m - n

good job