toastee357 toastee357

19-06-2021
Mathematics

contestada

If p + q + r = 4 and -p + q + r = 2, then p=?

(A) -2
(B) -1
(C) 0
(D) 1
(E) 2

Respuesta :

vincentelui vincentelui

22-06-2021

Answer:

D

Step-by-step explanation:

by subtraction of these 2 equation,

2p = 2

p = 1

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