Question

A)3725-1968-(437-×)=×+1320
B)12375-10371-(4375-×)=×-2371
C)7470-(×-375)-6845=1000

Answer 1

7470-x+375=1000+6845
-x=16845-7845
x=-9000
  la a si b nu se poate rezolva fiindca cade x -ul     -x+x=0

Answer 2

A) 3725 - 1968 - (437 - x) = x + 1320
1757 - 437 + x = x + 1320
1320 + x = x + 1320
x ∈ R

B) 12375 - 10371 - (4375 - x) = x - 2371
2004 - 4375 + x = x - 2371
x - 2371 = x - 2371
x ∈ R

C) 7470 - (x - 375) - 6845 = 1000
7470 - x + 375 - 6845 = 1000
1000 - x = 1000
x = 0