Question

1,(3)x-1,5=0,8(3)x-1 cum rezolv

Answer 1

1,(3)=(13-1)/9=12/9=4/3
0,8(3)=(83-8)/90=75/90=15/18=5/6
4x/3-15/10=5x/6-1
4x/3-5x/6=15/10-1
(8x-5x)/6=(15-10)/10
3x/6=5/10
3x·10=5·6
30x=30
x=30/30
x=1

Answer 2

[tex]1,(3)x-1,5=0,8(3)x-1 \\ \\ 1 \frac{3}{9}^{(3}x - \frac{15}{10}^{(5}= \frac{83-8}{90}-1 \\ \\ 1\frac{1}{3}x - \frac{3}{2} = \frac{75}{90}^{(15}-1 \\ \\ ^{2)}\frac{4}{3}x -^{3)}\frac{3}{2} = \frac{5}{6}-^{6)}1|*6 \\ \\ 8x-9=5-6 \\ \\ 8x-9=-1|+9 \\ \\ 8x=8|:8 \\ \\ \boxed{x=1}[/tex]