Ответ:
1) 3x-7 < x+1
3x-x < 1+7
2x < 8
x < 4
2) 1-x = 2x-5
3x = 6
x = 2
3) 2+x > 8-x
2x > 6
x > 3
4) 2x+1 > x+6
x > 5
5) 4x+2 > 3x+1
x > -1
6) 6x+1 < 2x+9
4x < 8
x < 2
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Answers & Comments
Ответ:
1) 3x-7 < x+1
3x-x < 1+7
2x < 8
x < 4
2) 1-x = 2x-5
3x = 6
x = 2
3) 2+x > 8-x
2x > 6
x > 3
4) 2x+1 > x+6
x > 5
5) 4x+2 > 3x+1
x > -1
6) 6x+1 < 2x+9
4x < 8
x < 2