A)30 B) 20 C) -30 D)-20
2006-11-10 00:24:23 · 14 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
12 - 7a + 3 + 8a = 5 - 22
solving for the value of a,
15 + a = -17
a = -32
letter C is the closest you can get.
2006-11-10 00:29:16 · answer #1 · answered by p®in©e 3 · 0⤊ 1⤋
D)-20
2006-11-10 16:01:51 · answer #2 · answered by J 6 · 0⤊ 0⤋
Is 12 included in the equation ?
12 - 7a + 3 + 8a = 5 - 22
a + 15 = - 17
a + 15 - 15 = - 17 - 15
a = - 32
The answer is - 32
- - - - - - - - - - - - - - - - -
- 7a + 3 + 8a = 5 - 22
a + 3 = - 17
a + 3 - 3 = - 17 - 3
a = - 20
The answer is a = - 20
The answer is (D) - 20
- - - - - - -s-
2006-11-10 02:03:25 · answer #3 · answered by SAMUEL D 7 · 0⤊ 0⤋
-7a +3 +8a= 3+a=-17
so a= -17-3=-20 ie. D
2006-11-10 00:30:48 · answer #4 · answered by grandpa 4 · 0⤊ 0⤋
-7a + 3+8a =5-22
-7a+8a =-17-3
a =-20
Letter D is correct
2006-11-10 00:54:08 · answer #5 · answered by Luiz S 7 · 0⤊ 0⤋
-7a + 3 + 8a =5 - 22
a + 3 = - 17
a = -17-3
a = -20
D) -20 is the answer.
2006-11-10 21:10:14 · answer #6 · answered by Akilesh - Internet Undertaker 7 · 0⤊ 0⤋
-7a + 3+8a =5-22
a+3=-17
a=-17-3
a=-20
GOT IT!
Answer - D
2006-11-10 00:27:56 · answer #7 · answered by RK 2 · 1⤊ 0⤋
-7a+3+8a=5-22
a+3=-17
a=-20
2006-11-10 00:28:28 · answer #8 · answered by dragongml 3 · 1⤊ 0⤋
you can rewrite summing the multiple of a
a+3 = 5-22=-17
a = -20
D is correct
2006-11-10 01:05:32 · answer #9 · answered by maussy 7 · 0⤊ 0⤋
What's this?
Is this your homework.
That is too easy to ask other people. I think you should ask your family first before other.
but I will still answer this.
Are looking for the value of a.
here's how it goes.
-7+3+8a=5-22
a+3=-17
a=-17-3
a=-20
That's how easy it is
2006-11-10 00:29:34 · answer #10 · answered by bhen 3 · 1⤊ 0⤋