Question

Решить систему
4a=6,25b+2,25c
4a=5b+3c
4a=4b+0,6

Answer 1

$4a=6.25b+2.25c\ 4a=5b+3c\ 4a=4b+0.6\ \ 6.25b+2.25c=5b+3c\ 1.25b=0.75c\ frac{c}{b}=frac{5}{3}\ c=frac{5b}{3}\ 5b+3c=4b+0.6\ 5b+5b=4b+0.6\ 6b=0.6\ b=0.1\ c=frac{1}{6}\ a=frac{1}{4}$