14-11=I2x-7I
I2x-7I=3
1) 2x-7=3
2x=10
x=5
2) 2x-7= -3
2x= 4
x=2
Ответ: x1=5, x2=2
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14-11=I2x-7I
I2x-7I=3
1) 2x-7=3
2x=10
x=5
2) 2x-7= -3
2x= 4
x=2
Ответ: x1=5, x2=2