Question

Solve the inequality -7x > 21. What is the graph of the solution

Answer 1

Explanation:

-7x > 21.

-x>3

x<-3

Answer 2

The answer is:

x < -3

Work/explanation:

To solve the inequality, we should divide each side by -7.

Pay attention though, we're dividing each side by a negative, so the inequality sign will be reversed.

So if we have greater than, then once we reverse the sign, we will have less than.

This is how it's done :

`\sf{-7x > 21}`

Divide :

`\sf{x < -3}`

Therefore, the answer is x < -3 .