Question

Надо.решите уравнения: |7х-2|=0 |5х-4|=0 |10х-1|=0

Answer 1

|7x-2| = 0 -> 7x-2=0 -> 7x = 2 -> x = 2/7
|5x-4| = 0 -> 5x - 4 = 0 -> 5x = 4 -> x = 4/5
|10x - 1| = 0 -> 10x -1 = 0 -> 10x = 1 -> x = 1/10

Answer 2

|7х-2|=0  
7х-2=0    
7x=0+2   
7x=2
x=7:2
x=3,5

|5х-4|=0
5х-4=0
5х=0+4
5х=4
х=4:5
х=0.8

|10х-1|=0
10х-1=0
10x=0+1
10x=1
x=1:10
х=0.1