Question

Answer of these questions

Answer 1

Answer:

Here's your answer

Step-by-step explanation:

x = -2

Therefore,

substituting x = -2 in equation 5x - 3y = 5

5× -2 - 3y = 5

-10 - 3y = 5

-3y = 5 + 10

-3y = 15

y = 15 / -3

y = 5

Hope it helps you

Answer 2

Answer:

Answer 12-=X = -1, y = 5

answer 13-= -5

Step-by-step explanation:

Answer 14 -

) (-15)³ + (9)³+ (6)³

Let x = -15, y = 9 & z = 6

x + y + z = -15+ 9 + 6= 0

Here, x + y + z = 0

We know that if,

x + y + z = 0, then x³ + y³ + z³ = 3xyz

(-15)³ + (9³ + (6)³ = 3(-15)(6)(9) =  -2430

(-15)³+ (9)³+ (6)³ = - 2430