va rog multttt :(((
like si tot ce vreti
![Va Rog Multttt Like Si Tot Ce Vreti class=](https://ro-static.z-dn.net/files/dce/7d3c3281b9275e6eff3f82fc5163bdff.jpg)
Răspuns:
5) a+b=63 a=4b/5
4b/5+b=63, 4b+5b=315, b=35 , a=4×35/5, a=28
Explicație pas cu pas:
6) a+5b=68, a=2b/3
2b/3+5b=68, 2b+15b=204 17b=204, b=12, a=2×12/3, a=8