Question

Ex 9 va rog dau coroana ❤❤

Answer 1

a) -3x>9
4x<1

x>-3
x<1/4

x∈(-3,+∞)∪(-∞, 1/4)

b)11x+1>=-5
2-3x<5

11x>=-6
x>=-6/11

-3x<3
x<-1

x∈[-6/11,+∞)∪(-∞,-1)

c)3-4x>5
6+9x<=1

-4x>2
x>-1/2

9x<=-5
x<=-5/9

x∈(-∞,-5/9]∪(-1/2,+∞)

d)3x-6>2x
2x-6>5x

3x-2x>6
x>6

2x-5x>6
-3x>6
x<-2

x∈(-∞,-2)∪(6,+∞)