Question

y-5-2x/2 = -3

x-2y/3= 1/3(x-y)-3/2

Tam gdzie / to kreska ułamkowa :D

Answer 1

x-5-2x/2 = -3

y-2x/2 = 2

y-2x = 1

y-x = 1/2

 

x-2y/3 = 1/3(x-y)-3/2

x-2y = 3(x-y)-3/2

x-2y = 3x-3y-3/2

x-y = 3x-3y-3

x-y-3x+3y = -3

-2x+2y = -3

-x+y = -1,5

x-y = 1,5