Question

2х+1/1,3=2,5/0.65 ребят помогите пожалуйста

Answer 1

2x + 1/1,3 = 2,5 / 0,65
2x + 1 ÷ 13/10 = 5/2 ÷ 13/20
2x + 1 × 10/13 = 5/2 × 20/13
2x + 10/13 = 50/13
2x = 50/13 - 10/13
2x = 40/13
x = 40/13 ÷ 2
x= 40/13 × 1/2
x = 40/26
x = 20/13
x= 1целая 7/13