18b+5a-9b+2a thanks all
2007-01-09 08:00:34 · 8 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
To solve this, you combine like terms. So, put the two Bs together, and put the two As together, and you have your answer!
(18b - 9b) + (5a + 2a)
9b + 7a
2007-01-09 08:09:37 · answer #1 · answered by Anonymous · 1⤊ 0⤋
Reorganize the terms in order to more effectively see the relationships.
18b - 9b + 5a + 2a
Combine like terms
9b + 7a
2007-01-09 08:06:59 · answer #2 · answered by smawtadanyew 2 · 1⤊ 0⤋
First: combine "like" terms ...
18b - 9b + 5a + 2a
9b + 7a
2007-01-09 10:39:01 · answer #3 · answered by ♪♥Annie♥♪ 6 · 0⤊ 0⤋
All I can do is: Combine the terms to get 9b = -3a. Then, divide by 3: 3b = -a. So if a = 1, b = -1/3
a = 2, b = -2/3
a = -1/3, b= 1/9...etc
2007-01-09 08:14:29 · answer #4 · answered by Richard S 6 · 0⤊ 1⤋
5a + 2a = -18b + 9b
7a = -9b
2007-01-09 08:08:52 · answer #5 · answered by Anonymous · 0⤊ 1⤋
7a+9b
2007-01-09 08:06:21 · answer #6 · answered by ccjcjl 2 · 1⤊ 0⤋
9b+7a
2007-01-09 08:05:16 · answer #7 · answered by bequalming 5 · 1⤊ 0⤋
think of it as:
18 apples + 5 pears - 9 apples + 2 pears = 9 apples + 7 pears
2007-01-09 08:04:55 · answer #8 · answered by krumenager 3 · 1⤊ 0⤋