Question

решите уравнение 3,4+2x=7(x-2)

Answer 1

3.4 + 2x = 7(x-2)
3.4+2x= 7x-14
2x-7x=-14-3.4
-5x=-17.4
x= -17.4 / -5
x= 3.48

Answer 2

3,4+2х=7(х-2)
3,4+2х=7х-14
17,4=5х
х=17,4:5
х=3,48