<span>48276 = 48280;
58307 = 58310;
78413 = 78410;
385125 = 385130;
142842 = 142840;
874550 = 874550.</span>
<span>19 + 7 * ( 13 - Х : 2 ) = 75
19+91-7X : 2=75
-7X : 2=75-19-91
-7X : 2=-35
-7X=2*(-35)
-7X=-70
X=10
</span>
14x-x+11y-2*7z=13x+11y-14z
4целых 3/4-3,75=1 9целых 5/6-3целых17/18=5целых16/18 5целых16/1/8*1=5целых16/18