Question

Решите уравнение: 3,2х + 0,4х + 13 = 40.

Answer 1

3,2х+0,4х=40-13
3,6х=27
х=27/3,6=7,5

Answer 2

3,2x + 0,4x + 13 = 40

3,6x = 40 - 13

3,6x = 27

x = 27/3,6

x = 7,5