Respuesta :

Esther

Answer:

w = 1/2p -21/2

Step-by-step explanation:

P = 21 +2w.

-21   -21

P - 21 = 2w

/2        /2

1/2p - 21/2 = w

Hope this helps!

Answer:

(P-21)/2=w

Step-by-step explanation:

P = 21 + 2w

Subtract 21 from both sides:

P - 21 = 21 + 2w -21

Simplify:

P - 21 = 2w

Divide both sides by 2:

(P - 21)/2 = 2w÷2

Simplify:

(P-21)/2=w