2006-08-14 19:50:00 · 12 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
b - 12 = 9
b = 9 + 12
b = 21
2006-08-14 19:52:57 · answer #1 · answered by Anonymous · 0⤊ 0⤋
b - 12 = 9
b = 9 + 12
b = 21
2006-08-14 21:21:46 · answer #2 · answered by Anonymous · 0⤊ 0⤋
21
2006-08-15 00:28:38 · answer #3 · answered by misanagiphoenia_18 2 · 0⤊ 0⤋
21
2006-08-14 19:57:07 · answer #4 · answered by ali 6 · 0⤊ 0⤋
21
2006-08-14 19:55:45 · answer #5 · answered by sanJose_Guy 4 · 0⤊ 0⤋
The easy way to think about this is:
What minus 12 equals 9?
Answer is 21.
The algebra way to think about this is:
b - 12 = 9
add 12 to both sides
b - 12 + 12 = 9 + 12
b = 21
Hope this helps!
2006-08-14 19:53:56 · answer #6 · answered by llemma 3 · 0⤊ 0⤋
b - 12 = 9
+ 12 + 12
adding + 12 to both sides
b = 21
The answer is b = 21
2006-08-15 00:38:43 · answer #7 · answered by SAMUEL D 7 · 0⤊ 0⤋
is this like 1st grade stuff?
b - 12 = 9
b = 9 + 12
b = 21
2006-08-17 10:34:27 · answer #8 · answered by chris m 5 · 0⤊ 0⤋
b=9+12
b=21
2006-08-15 02:00:47 · answer #9 · answered by Anonymous · 0⤊ 0⤋
b-12=9
b=9+12(as sign changes and becomes the opposite when it crosses the equal to sign)
b=21
therefore your answer is 21..
have a nice day
2006-08-15 00:07:46 · answer #10 · answered by kradhika_india 2 · 0⤊ 0⤋