Question

2x + y - 3z , x = 2/5 , y = 2/3 , z = 1/6 what does it equal

Answer 1

29/30

2x + y - 3z

2 x 2/5 + 2/3 - 3x1/6

4/5 + 2/3 - 3/6

x 3 x 5

12/15 + 10/15 - 3/6

22/15 - 3/6

x2. x5

44/30 - 15/30

= 29/30

Hope this helps!