Question

1.Calculati (a+b)+(a+c)-(a+b+c),unde:
a=1.739+(9.738)=...............................................................................
b=a-2.975............................................................................
c=b+(999+375)=................................................................................
(a+b)+(a+c)-(a+b+c).................................................................................

Answer 1

a = 1739 + 9738 = 11 477
b = a - 2975 = 11 477 - 2975 = 8502
c =b + (999 +375) = 8502 + 1374= 9876
( a + b ) + (a + c )- ( a + b + c ) =
( 11477 + 8502 ) + ( 11477 + 9876 ) - ( 11477 +8502 + 9876) =
19 979 + 21353 - 29 855=
41 332 - 29 855 = 11 477