Question

WHAT DID I DO WRONG?
|-2x-4|_<12

-2x-4_>-12 -2x-4_<12

-2x_>-8 -2x_<16

x_>4 x_<-8

Answer 1

When you divide both sides of an inequality by a negative number the inequality sign changes sides so -2x>=8 --> x<=4

Answer 2

You did the same thing in the right column.

Answer 3

thanks!

Answer 4

You're welcome.