Question

rezolvand ecuatia   2x+1(6)=-0,8(3)

Answer 1

1,(6)=(16-1)/9=15/9 simplif cu 3=5/3
0,8(3)=83-8)/90=75/90= simplif.cu 15=5/6
2x+5/3=-5/6
2x=-5/6-5/3
2x=(-5-10)/6
2x=-15/6 simplif cu 3
2x/1=-5/2
x=-5/2·2
x=-5/4
x=-1,25