Question

Don't see what I did wrong .. ?

Answer 1

So I submitted this to my teacher :
First, you're going to write on a piece of paper, -x + 3 > 7.
Second, you're going to subtract 3 from both sides like this:
-x + 3 > 7
-3 -3
------------
-x > 4
Third, you will be left with -x > 4.
Since we did not have to divide, the sign will stay the same.
To graph it, you will start with a point on 4 OPEN circle , & have it go to the right .

Answer 2

@amistre64

Answer 3

@Hero

Answer 4

what did the teacher say you got wrong?

Answer 5

This is her response : Bella - Jocelyn - Thank you for completing this assignment. I would like you to review the lesson then resubmit this. Remember you cannot have a negative variable - when multiplying or dividing by a negative number you must switch the inequality sign. Please call if you need any help.

Answer 6

solve for x, not for -x

Answer 7

Jocelyn & I worked on this collaboratively like it said to .. & I'm not sure where we messed up

Answer 8

oh I see, you can't have a -x, so you need to switch the signs on both sides.
so your answer would be
x>-4

Answer 9

How would I do that ? Just move them ?

Answer 10

-x > 4
+x +x
--------
0 > 4+x
-4 -4
-------
-4 > x

Answer 11

Thank you , Amistre . c: It helped .

Answer 12

basically screenie, if you have say a -x=-4, it would be x=4, just change the negative to a positive, and do the same for the other side (negaive to positive, or positive to negative.

Answer 13

just switch it to the other sign

Answer 14

Thank you Beckie , as well . Both answers helped .

Answer 15

np(:

Answer 16

"flipping the sign" when multiplying or dividing by a negative is not really mathical, it is a correcting process is all.

Answer 17

^yes but I prefer to use not mathmatical terms if I dont have to show my work or anything, because it makes the entire process easier and eliminates unneeded steps :P it's just how I work

Answer 18

I agree Beckie.