Răspuns :
0,5=1/2
3a/5b = 1/2
=>a=5b/6
2a+ 3b = 10b/6+3b = 5b/3 + 3b= =5b+9b/3 = 14b/3
8a-4b = 20b/3 - 4b = 20b-12b/3 = 8b/3
(2a+3b)/(8a-4b) = (14b/3)/(8b/3) = 7/4
Sper ca te-am ajutat
0,5=1/2
3a/5b = 1/2
=>a=5b/6
2a+ 3b = 10b/6+3b = 5b/3 + 3b= =5b+9b/3 = 14b/3
8a-4b = 20b/3 - 4b = 20b-12b/3 = 8b/3
(2a+3b)/(8a-4b) = (14b/3)/(8b/3) = 7/4
Sper ca te-am ajutat