Răspuns :
Răspuns:
Explicație pas cu pas:
Paranteza rotunda
(7/2- 3/5 x)
Aducem la acelasi numitor
( (7 ori 5)/(2 ori 5) - (3 ori 2)/ (5 ori 2) x)=
= (35/10- 6/10x)= (35-6x)/10
Acum avem
(35-6x)/10 ori 3/17=( 3 ori 35- 3 ori 6x)/ (10 ori 17)= (105- 18x) /170
Acum avem
(105-18x) /170=1/ 2
Asta inseamna ca
2 ori (105-18x)= 1 ori 170
210-36x=170
210-170=36x
40=36x
X=40/36 se simplifica cu 4
X= 10/9
Răspuns:
(⁵⁾7/2-²⁾3x/5)·3/17=1/2
(35/10-6x/10)·3/17=1/2
(35-6x)/10·3/17=1/2
[3(35-6x)/170]=1/2
(105-18x)/170=1/2
2(105-18x)=170
210-36x=170
-36x=170-210
-36x=-40·(-1)
x=40/36=10/9