algebra
posted by Andrea .
Hi, I need some help on my homework.
Can you help me?
True or False, if False correct the underlined portion.
1) If 3<x, then 3+y<x+y
2)If w7<3, then w7>3 or w7<3
3) If 4<2t+6<10, then 2>t+6>5
4) If y+8+2=6, then y+8=+4*
* the "+" is on top of "", I didn't know how to type it in.
I would really appreciate the help.

1 is true
2 makes no sense/ an absolute value can not be negative.
3 but t = 0 ok for first but not for second
4 you mean
4) If y+8+2=6, then y+8=+/ 4
y + 8 + 2 = 6
then y = 4
(y+8) + 2 = 6
y  8 + 2 = 6
 y  6 = 6
y = 12 NO or false 
+/4 means plus or  4

Damon,
thank you so much!!
This helped a lot!