Решите уравнения: 8s-16,8=0 12s-34,5=6s+1,5 3s-(14s-9)=75

Question

Решите уравнения:
8s-16,8=0
12s-34,5=6s+1,5
3s-(14s-9)=75

Answer 1

8s-16.8=0
8s=16.8
s=2.1

12s-34.5=6s+1.5
12s-6s=1.5+34.5
6s=36
s=6

3s-(14s-9)=75
3s-14s+9=75
-11s=75-9
-11s=66
s=-6