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6x-2x= 14+4
4x=18
x= 9/2
2. 3(x+2)<x+16
3x+6 <x+16
3x-x<16-6
2x<10
x<5
x = 0, 1, 2, 3, 4
3. 3x<5x-8
3x-5x<-8
-2x<-8
x>4
x = 5, 6, 7, 8, ....
4. 2 1/2 (2x-4) = 11/2+58
2x -4 = 127/2
4x -8 = 127
4x = 127 +8
4x = 135
x = 135/4
x = 33 3/4