4)
а
|2х-1|=7
2х-1=7
2х=8
х=4
б
|1-3х|=37
1-3х=37
3х=37-1
3х=36
х=12
Ответ:
|2x+3|=7. |1-3x|=37
2x+3=7 1-3x=37
2x+3= -7. 1-3x= -37
x=2 x= -12
x= -5. x=38/3
X1=-5 X2= -2. X1= -12 X2=38/3
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Answers & Comments
4)
а
|2х-1|=7
2х-1=7
2х=8
х=4
б
|1-3х|=37
1-3х=37
3х=37-1
3х=36
х=12
Ответ:
|2x+3|=7. |1-3x|=37
2x+3=7 1-3x=37
2x+3= -7. 1-3x= -37
x=2 x= -12
x= -5. x=38/3
X1=-5 X2= -2. X1= -12 X2=38/3