x/2 - 3= -15. what's "x"?
回答 (10)
-24
the person who said 36 forgot the - sign...
x/2 - 3 = -15
x - 6 = 30 [multiply all terms by '2' to get 'x']
x =36
x/2 - 3 = -15
x/2 = 3 - 15
x = 2(-12)
x = -24
x= -24
x/2 - 3 = -15
x/2 = -15 + 3
x/2 = -12
x = -12(2)
x = -24
(x / 2) - 3 = -15
x / 2 = -12 (add three to both sides)
x = -24 (multiply both sides by two to get x)
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
收錄日期: 2021-05-01 12:33:00
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