Question

Solve 4x < 2x - 10 and -3x > -12. Which is the best description of the solution set?
Answer

x < -5 and x < 4

x < -5 or x > 4

x < -5

x < 4

Answer 1

4x < 2x - 10 (subtract 2x from both sides)
4x - 2x < 2x - 2x - 10 (combine like terms)
2x < -10 (divide by 2 to get x by itself)
2x/2 < -10/2
x < -5

-3x > -12 (divide by -3 to get x by itself....keep in mind, when dividing by a negative, the inequality sign changes)
-3x/3 < -12/-3
x < 4

Answer is A.

Answer 2

any questions ?

Answer 3

Nope thank you

Answer 4

no problem :)