Question

Решите систему
12-6x<0
4-3(х+5) ≤ 7х+15

Answer 1

12-6х<0
-6x<0-12
-6x<-12
x<2

4-3(x+5)  ≤7x+15
4-3x-15 ≤7x+15
-11-3x≤ 7x+15
 -3x-7x≤15+11
-10x=26
x=2.6