Answered

1. a+7<15
2. 5t<25
3. -8x>24

Sagot :

Riza1viz
[tex]1.\\\\ a+7<15 \\a<15-7 \\a<8\\x \in (-\infty ,8)\\\\2.\\\\ 5t<25\ \ /:5\\t<\frac{25}{5}\\t<5\\x \in (-\infty ,5)\\\\3.\\\\ -8x>24\ \ / :(-8)\\x<-\frac{24}{8}\\x<-3 \\ x \in (-\infty ,-3) [/tex]