Question

Tìm x,y biết x+y=12
2x=3y

Answer 1

x= -12 & y=24

Explanation:

given,

x+y=12.......... equation (i)

2x=3y........eq(ii)

let,

x=12-y.......eq(iii)

from eq(ii)

2(12-y)=3y

y=24

putting the value of y in eq(iii)

x=12-24

x= -12