Question

Решите ПЛИИИЗ 34×(m+1.2)=61.2
15×(k-0.2)=21

Answer 1

34m+40.8=61.2
34m=20.4
m=20.4/34
m=0.6

15k-3=21
15k=18
k=18/15
k=1.2

Answer 2

34×(m+1.2)=61.2 | :34
m+1,2=1,8
m=1,8-1,2
m=0.6
_______________

15(k-0,2)=21
15k-3=21
15k=21+3
15k=24
k=24/15
k=8/5
k=1,6