Решите неравенство 3(3х-5)-9<27х-60

Question

Решите неравенство 3(3х-5)-9<27х-60

Answer 1

3(3х-5)-9<27x-60<br>9x-15-9-27x<-60<br>-18x<-36<br>18x>36
x>2

Answer 2

3(3x-5)=27x-60
9x-15=27x-60
-18x=-45
x=2,5