Question

6x-18y=-85 24x-5y =-5 usar metodo de sustitucion

Answer 1

6x-18y=-85 ∴ x=(-85+18y)/6 ∴ x=(-85+18(4.707)) /6 ∴ x=-0.274/6∴ x=-0.045
24x-5y=-5   
24(-85+18y/6)-5y=-5
(-2040+432y)/6-5y=-5
(-2040+432y)-5y=-30
-2040+427y=-30
427y=-30+2040
y=2010/427
y=4.707