Question

решите уравнение 1,3×-2-(3,3×+5)=2×+1

Answer 1

1,3x - 2 - ( 3,3x + 5) = 2x + 1
1,3x - 2 - 3,3x - 5 = 2x + 1
- 2x - 7 = 2x + 1
- 2x - 2x = 7 +1
- 4x = 8
4x = - 8
x = - 2