4.2÷(2x-7)=10÷7 1/7 Помогите

Question

4.2÷(2x-7)=10÷7 1/7
Помогите

Answer 1

4,2:(2х-7)=10:7 1/7
4,2:(2х-7)=10:50/7
4,2:(2х-7)=7/5=1,4
2х-7=4,2:1,4
2х-7=3
2х=3+7
2х=10
х=10:2
х=5