helpppppppppp with the math
|2x+3|=5 please solve dis please?
2008-09-21 4:17 pm
回答 (9)
2008-09-21 4:23 pm
✔ 最佳答案
l2x+3l=52x+3=5
2x=5-3=2
x=1
Or
-(2x+3)=5
-2x-3=5
-2x=5+3=8
x=-4
Therefore, x=1 or x=-4
2008-09-21 4:20 pm
2x+3 = 5 => x = 1
or
2x+3 = -5 => x = -4
or
2x+3 = -5 => x = -4
2016-10-17 4:01 pm
7 - 5*x = 12 - 3*x 7-7- 5x = 12 - 7 - 3x -5x = 5 - 3x -5x+3x=5-3x+3x -2x = 5 x= -5/2 examine 7 + 25/2 =? 12 + 15/2 (14+25)/2 = (24+15)/2 39/2=39/2 examine. 3y+7=7-2y 3y+7-7=7-7-2y 3y+2y+0=0-2y+2y 5y = 0 y=0 examine 3y+7=7-2y y=0 7=7 examine.
2008-09-21 4:32 pm
2x+3=5
2x=2
x=1
or
2x+3=-5
2x= -8
x=-4
X= 1 or -4
2x=2
x=1
or
2x+3=-5
2x= -8
x=-4
X= 1 or -4
2008-09-21 4:25 pm
2x + 3 = 5
2x = 5 - 3
2x = 2
x = 1
or...
2x + 3 = -5
2x = -5 - 3
2x = -8
x = -4
therefore, x = 1 or -4
2x = 5 - 3
2x = 2
x = 1
or...
2x + 3 = -5
2x = -5 - 3
2x = -8
x = -4
therefore, x = 1 or -4
2008-09-21 4:22 pm
|2x + 3| = 5
2x + 3 = ±5
2x + 3 = 5
2x = 5 - 3
2x = 2
x = 2/2
x = 1
2x + 3 = -5
2x = -5 - 3
2x = -8
x = -8/2
x = -4
∴ x = -4 , 1
2x + 3 = ±5
2x + 3 = 5
2x = 5 - 3
2x = 2
x = 2/2
x = 1
2x + 3 = -5
2x = -5 - 3
2x = -8
x = -8/2
x = -4
∴ x = -4 , 1
2008-09-21 4:20 pm
x = 1
2008-09-21 4:20 pm
x = ± 1
收錄日期: 2021-05-01 11:11:13
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