Question

Determine o conjunto solução das seguintes equações:
2x-6 igual 2
8x-6 igual 7x+5
7-3x igual -2
4-3x igual 10x-9

Answer 1

2x - 6 = 2
2x = 2 + 6
2x = 8
x = 8/2
x = 4

*************************
8x - 6 = 7x + 5
8x - 7x = 5 + 6
x = 11

********************************
7 - 3x =  - 2
7 + 2 = 3x
9 = 3x
3x = 9
x = 9/3
x = 3

******************************
4 - 3x = 10x - 9
4 + 9 = 10x + 3x
13 = 13x
13x = 13
x =13/13
x = 1