Question

The product of number x and -6 is equal to the sum of the same number x and 21?

Answer 1

`x = -3`

Explanation:

The problem can be written in algebraic form like

`(-6) (x) = x +21`

Solve for `x`

`-6x = x+21`

`-7x = 21`

`x = 21/(-7)`

`x = -3`