+6=
[tex]\frac{2}{5}x+2x=-2-6
[tex]\frac{2}{5}x+2x= -8
-(2/5)х+6=1/2(х-1)
-(2/5)х+6= (1/2)х-(1/2)
-(2/5)х-(1/2)х=-(1/2)-6
-(9/10)х=-(13/2)
(9/10)х=(13/2)
х=7 целых 2/9
ответ: х=7 целых 2/9
+6=
+6=
[tex]\frac{2}{5}x+2x=-2-6
[tex]\frac{2}{5}x+2x= -8
-(2/5)х+6=1/2(х-1)
-(2/5)х+6= (1/2)х-(1/2)
-(2/5)х-(1/2)х=-(1/2)-6
-(9/10)х=-(13/2)
(9/10)х=(13/2)
х=7 целых 2/9
ответ: х=7 целых 2/9