2006-11-21 12:27:24 · 5 answers · asked by lexh 1 in Science & Mathematics ➔ Mathematics
- 7 - 4x < 13
-7 - 4x + 7 < 13 + 7
- 4x < 20
- 4x/- 4 > 20 /- 4
x > - 5
The answer is x > - 5
- - - - -s-
2006-11-21 12:37:48 · answer #1 · answered by SAMUEL D 7 · 0⤊ 0⤋
-7-4x<13
< sign can represent = sign,so no cause for alram.
-7-4x<13
group like terms:variables on one side and numbers on other side
-4x<13+7
-4x<20
-4x/-4<20/-4
x<-5 but since X had a negative value,the sign < changes to > sign.
x>-5
2006-11-21 12:35:42 · answer #2 · answered by Phy A 5 · 0⤊ 0⤋
-7-4x<13 add 7 to both sides
-4x<20 divide by -4. when you divide by a negative, you need to flip the <.
so, x>-5
2006-11-21 12:32:03 · answer #3 · answered by Christine 2 · 0⤊ 0⤋
-7-4x<13
-4x<13+7
-4x<20
x<20/-4
x<-5
2006-11-21 19:13:10 · answer #4 · answered by sam 3 · 0⤊ 0⤋
-7-4x<13
-4x<20
x>-5
2006-11-21 12:30:30 · answer #5 · answered by cobraqueen89 2 · 1⤊ 0⤋