Question

Substitute the value of the given variables and evaluate the expression.
x=-3,
y = 5,
z= -2
1. 4x-2
2. xyz
3. 2x-3y + z =
4. Xy --Z
5. x+y =​

Answer 1

Answer:

1. 4(-3)-2 = -12-2= -14

2. -3 X 5 X -2 = 30

3. 2(-3) -3(5) + (-2) = -6-15-2 = -23

4. -3 X 5 X -(-2) = -30

5. -3+5= 2

Answer 2

Answer:

1. ➡️ -14

2.➡️ 30

3.➡️ -23

4.➡️ -13

5.➡️ 2

Step-by-step explanation:

1. 4x-2 = 4×(-3)-2

= -12-2

= -14

2. xyz = (-3)×5×(-2)

= -15×(-2)

= 30

3. 2x-3y+z = 2×(-3)-3×5+(-2)

= -6-15+(-2)

= -6-15-2

= -21-2

= -23

4. xy-z = (-3)×5-(-2)

= -15-(-2)

= -15+2

= -13

5. x+y = -3+5

= 2