Question

Given: -7x < -21.

Choose the solution set.

{x | x < -3}
{x | x > -3}
{x | x < 3}
{x | x > 3} can anyone help?

Answer 1

When you divide over a negative number, you turn the sign
-1 > -2 so 1 < 2
In your example it will be -7x < -21
x > 3
| = as.

Answer 2

correct^

Answer 3

thank you @TrojanPoem

Answer 4

Any time.