Question

gente me ajudem nas inequaçoes a)9×-5(3-2×)>7×+9= b)4y-5<2(y+3)+5y c)6t-(5t+8)≤1-2(5-t) respondam porfavor

Answer 1

Olá,

Vamos lá,

a)9×-5(3-2×)>7×+9 
9x-15+10x>7x+9
9x+10x-7x>9+15
12x>24
x>24/12
x>2


b)4y-5<2(y+3)+5y
4y-5<2y+6+5y
4y-2y-5y<6+5
-3y<11  *(-1)
y>11/3

c)6t-(5t+8)≤1-2(5-t) 
6t-5t-8≤1-10+2t
6t-5t-2t≤1-10+8
-t≤-1    *(-1)
t≥1