Question

Five times a number is 21 less than twice the opposite of the number. What is the number

Answer 1

By opposite it means if the number is 5 the opposite is -5.

5n = -2n - 21

7n =-21

n = -3

(The number is -3 )

Answer 2

-3

Explanation:

5 x = -2x -21

7x = -21

x = -3