Question

7p - 39 = 28
5q -4P = 16​

Answer 1

Método: Sustitución

{7p - 39 = 28

{5q - 4p = 16

7p - 39 = 28

7p = 28 + 39

7p = 67

p = 67/7

5q - 4 × 67/7 = 16

5q - 268/7 = 16

5q = 16 + 268/7

5q = 380/7

q = 76/7

(p, q) = (67/7, 76/7)

Besitos OvO