Question

1 - (28+x/39+x) < 1/100

Answer 1

28+x÷39+x<1÷100

28+x/39+x<0.01

28+x+39x/39 < 1/100

28+40x/39 < 1/100

3900 x 28 +3900 x 40x/39<3900x1/100

109200+4000x<39

4000x<39-109200

4000x<-109161

x<-109161/4000




espero que te sirva amig@