Question

11,2(5x-1)+3(13,4-7x)=36

Answer 1

11,2(5x-1)+3(13,4-7x)=36
56x-11,2+40,2-21x=36
35x+29=36
35x=36-29
35x=7
x=7:35
x=1/5=0,2

Answer 2

Спасибо большое)

Answer 3

11,2 (5х - 1) + 3(13,4 - 7х) = 36
56х - 11,2 + 40,2 - 21х = 36
35х = 36 + 11,2 - 40,2
35х = 7
    х = 7/35
    х = 1/5

Answer 4

Спасибо большое)

Answer 5

Ок!