Помогите с примерами

Question

Помогите с примерами

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Answer 1

5) 33m-m=102.4
32m=102.4
m=102.4:32
m=3.2
6) 2.7x-1.3x+3.6x=2
1.4x+3.6x=2
5x=2
x=2:5
x=0.4

Answer 2

33m-m=102,4
32m=102.4
m=102.4:32
m=3,2
........................
2,7x-1,3x+3,6x=2
5x=2
x=5:4
x=2,5