I need help. Please! It's for homework!
3xy-7 when x=4, y=12, and z=9
2007-09-08 07:35:59 · 8 answers · asked by ? 2 in Science & Mathematics ➔ Mathematics
All you do is plug the numbers into the variables and simplify:
3xy-7
3(4)(12)-7
144-7
137
2007-09-08 07:40:00 · answer #1 · answered by Pascal 7 · 1⤊ 0⤋
137 unless the 7 should be z then the answer is 135
2007-09-08 14:43:23 · answer #2 · answered by Tim B 1 · 1⤊ 0⤋
1289 if u put z in the equation n itz 137 without
2007-09-08 14:43:42 · answer #3 · answered by ~!~Dat Gurl Kelz~!~ 2 · 0⤊ 0⤋
3xy
3(4)(12)
12(12)
144
answer:144
2007-09-08 14:47:50 · answer #4 · answered by Stephy 2 · 0⤊ 0⤋
your stupid in in the 7 grada and i know the answer
im going to make you think about it
wuhahahahahahahaha
2007-09-08 14:44:58 · answer #5 · answered by bigfootasd 1 · 0⤊ 1⤋
137, i'm reviewing the same thing in school
2007-09-08 14:41:29 · answer #6 · answered by angel1271994 2 · 0⤊ 0⤋
You have not expressed a proper equation!
No solution can be arrived from this!
2007-09-08 14:42:50 · answer #7 · answered by Anonymous · 0⤊ 1⤋
umm there isn't even a z in the equation..... maybe you should type it out right...
2007-09-08 14:39:53 · answer #8 · answered by wishing4more 2 · 0⤊ 0⤋