-5+(-2 3/7)=-7 3/7
-2/9+(-5/6)=-1 1/18
-1,47+2,6=1,13
34-17 = 17
температура лягушки снизится на 17 градусов .
<span>38х-16х=1474</span>
<span>22x=1474</span>
<span>x=1474/22</span>
<span>x=67</span>
<span>
</span>
<span><span>у+27у=952</span></span>
<span><span>28y=952</span></span>
<span><span>y=952/28</span></span>
<span><span>y=34</span></span>