Ответ:
8. =(a*(3a-b)^2):(a*(3a-b))-3a=3a-b-3a=5,6
9. =c(6-c)*(1-c):(1-c):c^2=(6-c):c=4,8:1,2=4
10. =y*(x+y)*3x:15x:(x+y)=y:5=1,5
11. =(a^2+9+6a):3a:(a+3)=(a+3)^2:3a:(a+3)=(a+3):3a=0,5
12. =6x*14:x=84
13. =(b-a)*(b+a):ab:(b+a)=(b-a):ab=(-2)
14. =(y-4x-y):y:4x=-1:y=-2
15. =(16-4a):a:(4-a)=4:a=-(1:3)
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Ответ:
8. =(a*(3a-b)^2):(a*(3a-b))-3a=3a-b-3a=5,6
9. =c(6-c)*(1-c):(1-c):c^2=(6-c):c=4,8:1,2=4
10. =y*(x+y)*3x:15x:(x+y)=y:5=1,5
11. =(a^2+9+6a):3a:(a+3)=(a+3)^2:3a:(a+3)=(a+3):3a=0,5
12. =6x*14:x=84
13. =(b-a)*(b+a):ab:(b+a)=(b-a):ab=(-2)
14. =(y-4x-y):y:4x=-1:y=-2
15. =(16-4a):a:(4-a)=4:a=-(1:3)