1) 7х - 21 < 0 2) 3x + 12 < 3
5x + 10 > 0 11 - 5x > 26
7x < 21 3x < - 9
5x > - 10 - 5x > 15
x < 3 x < - 2
x > -2 x > - 3
0/\/\/\/\0> x 0/\/\\/\/\\/\0> x
-2 3 -3 -2
x є ( -2 ； 3 ) х є ( -3 ； -2 )
