Question

The product of seven and a number is negative 21. Find the number

Answer 1

7 times 3 = 21
Make 3 negative

-3

And 7 times -3 = -21

Answer 2

-3

Explanation:

Let n be the number

product of seven and a number

7n

is negative 21

7n = -21

Divide each side by 7

7n/7 = -21/7

n = -3

The number is -3