J(x)=5 -6x
1)J(x) =-7 ⇒ -7 =5 - 6x
6x =5+7
6x= 12
x = 2
2)J(x)= 29 ⇒ 29 = 5 -6x
6x = 5 - 29
6x = - 24
x = - 4
3) J(x) = 65
65 = 5 - 6x
6x = 5 -65
6x = - 60
x = - 10
j(х) = -7, при х =2
j(х) = 29, при х = - 4
j(x) = 65, при х =- 10
J(x)=5 -6x
1)J(x) =-7 ⇒ -7 =5 - 6x
6x =5+7
6x= 12
x = 2
2)J(x)= 29 ⇒ 29 = 5 -6x
6x = 5 - 29
6x = - 24
x = - 4
3) J(x) = 65
65 = 5 - 6x
6x = 5 -65
6x = - 60
x = - 10
j(х) = -7, при х =2
j(х) = 29, при х = - 4
j(x) = 65, при х =- 10