Question

Solve for x: −2x − 4 > 8

Answer 1

To solve for x in an inequality is very similar to solving for x in an equation since for both you would need to isolate x.

step 1) -2x-4>8 add the 4 over to move any constants over to the +4 +4 other side.
-2x> 12

step 2) x< -6 Divide out the -2 to isolate x, however, keep in mind, when you divide or multiply over any negative number, you must also remember to flip the inquality sign.


Answer: x<-6

Answer 2

-2x - 4 > 8 Add 4 to both sides of the inequality sign
-2x > 12 Divide both sides by -2 (When you divide by a negative on an inequality, you need to flip the inequality sign as well.)
x < -6