Question

[Suzy]

{2/3+1/3:3/4+5/9}x y-3=25%+7/4

Answer 1

[Suzy]

(2/3+1/3*4/3+5/9)*y-3=1/4+7/4

2/3+4/9+5/9)*y-3=2

(2/3+1)*y-3=2

1 và 2/3*y-3=2

5/3*y-3=2

5/3xy=2+3

y=5:5/3

y=3