Question

Explain the difference between solving 2x<7 and solving -2x<7?

Answer 1

hint:

if you divide/multiply both sides of an inequality by -1, you have to flip the signs

does that help?

Answer 2

or do you need more help?

Answer 3

i need more help.

Answer 4

let me give you an example
\[3x > 6\]
here, i just divide by 2..and get \[x > 2\]

now... when i have \[-3x > 6\]
i have to divide by 2
\[-x > 2\]
AND divide by -1..now if i divide by -1, i hve to flip the inequality signs so.. \[x < -2\]

do you see it now?

Answer 5

when i say divide by 2 i mean divide by 3...

Answer 6

I think I get it..

Answer 7

wonderful