Question

1) RESOLVA AS INEQUAÇÕES

A)3y-4 < 5y+6

B)25-2a < 10-7a

C)3c+13 < C+7

Answer 1

a) 3y-4<5y+6
3y-5y<6+4
-2y<10 .(-1)
2y>-10
y>-10/2
y>-5

b)25-2a<10-7a
-2a+7a<10-25
5a<-15
a<-15/5
a < -3

c)3c+13<C+7
3c-c<7-13
2c < -6
c < -6/2
c < -3