Решите уравнение 2/3(11/2+3/5)-4/5(5/12x-1/2)=1 - вопрос №889262323112354551212135 от KimSuho01 19.05.2022 19:30

Question

Математика: Решите уравнение 2/3(11/2+3/5)-4/5(5/12x-1/2)=1 3/5

KimSuho01 · Answer

2/3(11/2+3/5)-4/5(5/12x-1/2)=1 3/5
11/3 + 2/5 - 1/3x + 2/5 = 1 3/5
- 1/3x = 1 3/5 - 4/5 - 11/3
- 1/3x = 4/5 - 3 2/3
- 1/3x = 12/15 - 2 25/15
- 1/3x = - 2 13/15
x = - 2 13/15 : ( - 1/3 )
x = + 43/15 : 1/3
x = 43/5
x = 8 3/5 ( или 8,6 )