2x-1=0,2x=1,x=1/2
2(x-3)=1, 2x-6=1,2x=7,x=-7/2
7/3x-5=0, x=15/7
Răspuns:
a. 2x-1=0=>2x=1=>x=1/2=>x=0,5
b. 2x-6=1=>2x=1+6=>x=7/2=>x=3,5
c. (23-2)x/9-5=0=>21x/9=5=>21x=45=>x=45/21=>x=15/7
