Question

1. When x=2, y =3, z = 4, find the value of the sum of 5x", -3xy, z".
Also find the value of 3z + 3xy.​

Answer 1

5x = 5x2= 10
-3xy = -3x2x3= -18
3z + 3xy = (3x4)+(3x2x3) = 30

Answer 2

Answer:

The answer is -4

Step-by-step explanation:

Given:

x = 2

y = 3

z = 4

The sum of 5x + (-3xy) + z:

5x + (-3xy) + z

5×2 + (-3×2×3) + 4

10 + (-18) + 4

10-18+4

10+4-18

14-18

-4