Question

responda
1: 4x-17>53

2: -4x-17 <53

3: -4x+17 <53

4: 4x-17>-53

5: -(x-2)<172

6: 4 (-x+2)>-12

7: -4 (-x-2)>-12

8: 4 (-x-8)<-10


Obrigado

Answer 1

Olá

Vamos lá,

1: 4x-17>53 
4x>53+17
4x>70
x>70/4 ..x>35/2


2: -4x-17 <53
-4x<53+17
-4x<70  *(-1)
4x>-70
x>-70/4    ...x>-35/2

3: -4x+17 <53
-4x<53-17
-4x<36  *(-1)
4x>-36
x>-36/4
x>-9

4: 4x-17>-53
4x>-53+17
4x>-36
x>-36/4
x>-9

5: -(x-2)<172
-x+2<172
-x<172-2
-x<170  *(-1)
x>-170

6: 4 (-x+2)>-12
-4x+8>-12
-4x>-12-8
-4x>-20   (-1)
4x<20
x<20/4
x<5


7: -4 (-x-2)>-12
4x+8>-12
4x>-12-8
4x>-20
x>-20/4
x>-5


8: 4 (-x-8)<-10
-4x-32<-10
-4x<-10+32
-4x<22  *(-1)
4x>-22
x>-22/4
x>-11/2

Bons estudos, dúvidas só chamar !!!:>))