Question

2x+5y=1. 6x+7y=3 resolver con el metodo de sustitucion

Answer 1

x=1-5y/2

6(1-5y / 2) + 7y = 3

6/2 - 30y/2 +7y =3

3 - 15y +7y = 3

-8y = 3-3

y = 0

2x +5(0) = 1

2x = 1

x = 1/2

6(1/2) + 7(0) =3

3 = 3

x=1/2   y=0