Question

x/72-13/72=29/72 и 15/17-(b-3/17)=6/17помогите плиииииз очень нужно

Answer 1

х/72-13/72=29/72
х/72=29/72+13/72
х/72=42/72
х=42/72*72
х=42
15/17-(b-3/17)=6/17
15/17-b+3/17=6/17
-b=6/17-15/17-3/17
-b=-12/17
b=12/17

Answer 2

x/72-13/72=29/72
x/72=29/72+13/72
x/72=3/4
15/17-(b-3/17)=6/17
b-3/17=15/17-6/17
b-3/17=9/17
b=9/17+3/17
b=12/17