x/2 - 3= -15. what's "x"?

2009-06-30 4:59 am
btw, x/2= x over 2

回答 (10)

2009-06-30 5:04 am
✔ 最佳答案
-24

good luck
2009-06-30 12:08 pm
-24
the person who said 36 forgot the - sign...
2009-06-30 12:04 pm
x/2 - 3 = -15
x - 6 = 30 [multiply all terms by '2' to get 'x']
x =36
2009-07-02 1:51 am
x / 2 = - 12

x = - 24
2009-06-30 12:33 pm
-24
2009-06-30 12:22 pm
x/2 - 3 = -15
x/2 = 3 - 15
x = 2(-12)
x = -24
2009-06-30 12:14 pm
x= -24

x/2 - 3 = -15

x/2 = -15 + 3

x/2 = -12

x = -12(2)

x = -24
2009-06-30 12:10 pm
(x / 2) - 3 = -15
x / 2 = -12 (add three to both sides)
x = -24 (multiply both sides by two to get x)
2009-06-30 12:09 pm
x/2 - 3 = - 15
x/2 = 3 - 15
x/2 = - 12
x = 2(- 12)
x = - 24
¯¯¯¯¯¯¯¯
Check:

- 24/2 - 3 = - 15
- 12 - 3 = - 15
- 15 = - 15

Uh huh
2009-06-30 12:07 pm
24


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