a)4x/9=16/3 =>12x=144 =>x=12
b)3x+2=11 =>3x=11-2 =>3x=9 =>x=3
c)(3x/4)+1=13 =>3x+4=52 =>3x=48 =>x=16
d)(5x/2)+1/2=1 =>5x/2=1/2 =>Este scris gresit, solutia nu este naturala...
e)(5x/2)+1/3=7/6 =>15x+2=7 =>15x=5 Si aici, solutia nu este naturala...
d)4x-1=11 =>4x=11+1 =>4x=12 =>x=3