Question

9x-_______=-12has the solution (-2)​

Answer 1

Answer:

let y be integer .

since -2 is solution ,therefore

p(-2)= 9(-2)- y = -12

-18-y=-12

-18+12=y

-6=y

hence y=-6

Answer 2

Answer:

3

Step-by-step explanation:

Let the number is m,

So, 9x−m=−21,

Putting the value of x=−2

⇒9(−2)−m=−21

⇒−18−m=−21

⇒m=−21+18=3

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