Question

С решением пожалуйста!!!!

Answer 1

${2}^{x - 3y} = 64 = {2}^{6}$

{x-3y = 6

{2x+y = 5|•3

{x-3y = 6

{6x+3y = 15

7x = 21

x = 3

6+y = 5

y = -1