21-15t
9a+6
30+15k
12-m-4n
3a(ex2)+6a+9
5x+(2x-6)
(11y+9)-6y
4a-(3a+15)
(4x-7)-3x-7)
ex=exponets
Thanks, Iets put it this way, I don't know anything about math, lol
2006-11-30 14:33:56 · 9 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
The book doesn't GIVE THE VALUE.... I copied these straight from my book.
2006-11-30 14:41:53 · update #1
21-15T=0
-15T=-21
T= -21/-15
9a+6=0
9a=-6
a=-6/9
that should help you get started
2006-11-30 14:39:52 · answer #1 · answered by iowa_trooper911 2 · 0⤊ 0⤋
21-15t = 3(7-5t)
9a+6 = 3(3a+2)
30+15k = 15(2+k)
12-m-4n = 4(3-n)-m
3a^2+6a+9 = 3(a^2+2a+3)
5x+(2x-6) = 7x + 6
(11y+9)-6y = 5y + 9
4a-(3a+15) = a-15
(4x-7)-3x-7) = like it is written it is x -14 but if there is an open parenthases before the 3 it is just x
you do this because they are expressions. you do not set that equal to 0 becasue that makes it an equation
2006-11-30 22:50:43 · answer #2 · answered by kyla m 1 · 0⤊ 0⤋
There is way too much to show you in the space allowed here.
2006-11-30 22:42:03 · answer #3 · answered by Nelson_DeVon 7 · 0⤊ 0⤋
Surely your textbook includes directions. "Solve" is too general and frankly, does not make sense for these expressions. Are you sure you're not supposed to "Factor" or "Simplify"?
2006-11-30 22:58:04 · answer #4 · answered by bictor717 3 · 0⤊ 0⤋
I can't answer that question because u didn't indicate the value of each variable... and there's no equation..
2006-11-30 22:38:13 · answer #5 · answered by Steph_kinse 2 · 0⤊ 0⤋
YOu cant, it must say something like (11x-7)-2x = 30
YOU FORGOT THE EQUALS PART.
2006-11-30 22:40:32 · answer #6 · answered by efrosty 2 · 0⤊ 0⤋
I tried and I failed. I aint good at math either.
2006-11-30 22:39:05 · answer #7 · answered by addict for dramatic 4 · 0⤊ 0⤋
you can't solve them because they aren't set equal to anything
2006-11-30 22:37:41 · answer #8 · answered by Megan M 2 · 0⤊ 0⤋
sure!!
remind me later 'mkay?
2006-11-30 22:36:31 · answer #9 · answered by Anonymous · 0⤊ 0⤋