РЕШИТЕ ПЛИЗ(ЭТО АЛГЕБРА, ЕСЛИ ШО)

1)204307+130851:217-2428
204+307+603-2428=-1314

2)(1037-85284:412)52+2843
(1037-207)52+2843
83052+2843
43160+2843=46003

3)(369.963:11.11+0.7)(3.9-23.766:6.99)
(33.3+0.7)(3.9-3.4)
340.5=17

4)-0.91:(3 1/3-1 1/40.24)+0.4
-91/100(10/3-5/46/25)+2/5
-91/100(10/3-1/23/5)+2/5
-91/100(10/3-3/10)+2/5
-91/100+91/30+2/5
-91/10030/91+2/5
-1/103+2/5
-3/10+2/5=1/10

5)(2 1/3-1 2/30.75)(-4 1/3)-1/8
(7/3-5/33/4)(-13/3)-1/8
(7/3-5/4)(-13/3)-1/8
-13/123/13-1/8
-1/4-1/8=-3/8

6)(-22/454/5+5/72(-5/6))3.6
(-22/455/4-5/726/5)18/5
(-11/91/2-1/12)18/5
-25/3618/5=-5/2