Question

valor da equaçao
1) 5X-8<-3x+16
a) x<3
b) x<1
c) x>4
d) x<12

2)9x-5(2-x)>7x+4
a)x>1
b)x_<14
c) x>2
d) x=5

3) (1/3)x > 1/27 (Fração)
a) x>9
b) x<3
c) x<9
d) x>3 ​

Answer 1

Resposta:

1-  8x−24<0

a)  x−3<0

b) x−1<0

c) x−4>0

d) x−12<0

2) 9x−5⋅(−x+2)−{7x+4}>0

9x−(−5x+10)−{7x+4}>0

(14x−10)−{7x+4}>0

7x−14>0

a) x−1>0

b) x +14<0

c) x−2>0

d) x−5=0

(1)⋅x+(−5)=0

x=−(−5)1

x=5

3) 1/3x−1/27>0

a) x−9>0

b)x−3<0

c) x−9<0

d) x - 3 > 0

espero ter ajudado