Question

Resolva as equações:
a) 3(x-1) <5-2x

b) 2+2x<6(x-5)

c)5x-2(x-1)>7-4x

d)2(x+1)>3(x+2)

e) 3(x-1)<3x+1+3

Answer 1

a) 3(x-1)<5-2x
3x-3<5-2x
5x<8
x<8/5 ou 1,6

b)2+2x<6(x-5)
2+2x<6x-30
32<4x
x>32/4
x>8

c)5x-2(x-1)>7-4x
5x-2x+2>7-4x
7x=5
x=5/7

d)2(x+1)>3(x+2)
2x+2>3x+6
-4>x
x<-4

A e) tá errada assim q mudar eu comento a resolução