<span>-5/9 (5.4p -1_4/5m) -6.4(-3/8p+2.5m)якщо p=-10m=0.
</span>-5/9 (5.4p -1_4/5m) -6.4(-3/8p+2.5m)=-3р+m+2,4p-16m=-0.6p-15m=-0.6*(-10)-16*0=6
-0.72x=52.907
x=52.907:(-0.72)
x=примерно - 73.4
568:(3+5)=568:8=71
71*3=213
71*5=355
213*355=75615
30:15=2
60:30=2
вот решение