2007-01-28 00:46:32 · 4 answers · asked by noggle4 2 in Science & Mathematics ➔ Mathematics
13x - 21 < 4
13x - 21 + 21 < 4 + 21
13x < 25
13x/13 < 25/13
x < 1 12/13
- - - - - - - - -s-
2007-01-28 02:48:55 · answer #1 · answered by SAMUEL D 7 · 0⤊ 0⤋
13x-21<4
13x<25 we transpose the -21 to the other side and
x<2 and it becomes positive. now as you can see, we added 21 and 4, and thus it becames 25, if 25 is greater than 13x then x cant be greater than two because 2*13=26 thus the answer is x<2
2007-01-28 00:59:13 · answer #2 · answered by mark f 1 · 0⤊ 0⤋
13x<4+21
13x<25
x<1.923
2007-01-28 00:53:24 · answer #3 · answered by Gottaknow 2 · 0⤊ 0⤋
68.25?
thats presuming the > means devide, which i doubt.
2007-01-28 00:51:51 · answer #4 · answered by jojobass86 3 · 0⤊ 0⤋