1) (74+х)+38 = 74 + x + 38 = 112 + x
2)238+(а+416) = 238 + a + 416 = 654 + a
3) у +324+546 =y+870
4) 2753+m+4199 =m+6952
5)(b +457)+(143+872) = b + 457 + (143 + 872) = b + 457 + 143 + 872 = b + 1472
6)(2235+с)+(4671+1765) = 2235 + c + (4671 + 1765) = 2235 + c + 4671 + 1765 = 8671 + c
7)(1696+3593)+(р+1304) = 1696 + 3593 + (p + 1304) = 1696 + 3593 + p + 1304 = 6593 + p
8)(5432+8951)+(4568+a+1049)= 5432 + 8951 + (4568 + a + 1049) = 5432 + 8951 + 4568 + a + 1049 = 20000 + a
1) (74+х)+38 = 74 + x + 38 = 112 + x
2)238+(а+416) = 238 + a + 416 = 654 + a
3) у +324+546 =y+870
4) 2753+m+4199 =m+6952
5)(b +457)+(143+872) = b + 457 + (143 + 872) = b + 457 + 143 + 872 = b + 1472
6)(2235+с)+(4671+1765) = 2235 + c + (4671 + 1765) = 2235 + c + 4671 + 1765 = 8671 + c
7)(1696+3593)+(р+1304) = 1696 + 3593 + (p + 1304) = 1696 + 3593 + p + 1304 = 6593 + p
8)(5432+8951)+(4568+a+1049)= 5432 + 8951 + (4568 + a + 1049) = 5432 + 8951 + 4568 + a + 1049 = 20000 + a