Question

Resolva em R:
a) 2x < 12
b) 2x < -12
c) -2x < 12
d)-2x < -12
e) -3x > 6

Answer 1

Explicação passo-a-passo:

a) 2x < 12

x<12/2

x<6

b) 2x < -12

x<-12/2

x<-6

c) -2x < 12

-2x<12.(-1)

2x>12

x>12/2

x>6

d)-2x < -12

-2x<-12 .(-1)

2x>12

x>12/2

x>6

e) -3x > 6

-3x>6 .(-1)

3x<-6

x<-6/3

x<-2