x+3<8
x>8-3
x>5
x egal 0,1,2,3,4
3x+2-2x+5 egal 7x-8
3x-2x-7x egal -2-5-8
1x-7x egal -2-5-8
-6x egal -15
x egal [tex] \frac{-15}{-6} [/tex]
x egal [tex] \frac{15}{6} [/tex] (simplifici 15 cu 6)
x egal [tex] \frac{5}{2} [/tex]
x+1<3
x<3-1
x<2
x egal 3,4,5...infinit
