Vrei rezolvarea completa sau doar raspunsul?
rezolvarea completa :)
Ok imediat
600:7+ax2-20=180 .... 600:7+a x2=180+20...600:7+a x = 200:2=...600:100= 6....6x7=42.....a=42

Răspunsuri

2014-01-19T14:27:26+02:00
700:7+ax2-20=180
100+ax2-20=180
ax2-20=80
ax2=100
a=50
2014-01-19T14:31:20+02:00
20x35:7+ax2-40:2=180 => 700:7+2a-40:2=180 =>100+2a-20=180 => 2a-20=80 => 2a=100 => a=50