Решите уравнения 1)x/72-13/72=29/72 2)(29/42-a)-13/42=11/42 3)15/17-(b-3/17)=6/17...

Question

Решите уравнения
1)x/72-13/72=29/72
2)(29/42-a)-13/42=11/42
3)15/17-(b-3/17)=6/17
4)29/43-(m+13/43=5/43

Answer 1

Х/72-13/72=29/72
х/72=29/72+13/72
х/72=32/72
х=32/72•72
х=32
(29/42-а)-13/42=11/42
(29/42-а)=11/42+13/42
(29/42-а)=24/42
-а=24/42-29/42
-а=-5/42
а=5/42
15/17-(в-3/17)=6/17
15/17-в+3/17=6/17
-в+18/17=6/17
-в+1 1/17=6/17
-в=6/17-1 1/17
-в=-12/17
в=12/17
29/43-(m+13/43)=5/43
29/43-m-13/43=5/43
-m+16/43=5/43
-m=5/43-16/43
-m=-11/43
m=11/43