Question

intr-un parc s-au plantat 63 flori albe si rosii .la 3 flori rosii s-au plantat 4 flori albe .cate flori rosii si cate flori albe sunt?

Answer 1

a+r=63
3a=4r    a=4r/3

4r/3+r=63
4r+3r/3=63
7r=31
r=4
a=59