Question

Resolva as equações
2x-4= x+5

7x+ 2 = 3 x +2-6

5x -7 = x - 1

Answer 1

Olá...

2x - 4= x + 5

2x - x= 5 + 4

1x= 9

x= 9/1

x= 9

_______________

7x + 2= 3x + 2 - 6

7x - 3x= 2 - 6 - 2

4x= - 6

x= - 6/4

x= - 3/2

_______________

5x - 7= x - 1

5x - x= - 1 + 7

4x= 6

x= 6/4

x= 3/2

Answer 2

Resposta:

2x-4= x+5

2x-x= 5 + 4

x= 9

7x+ 2 = 3 x +2-6

7x-3x= 2-6-2

4x = -6

x=-6/4 reduza por 2

x = -3/2

5x -7 = x - 1

5x-x = 7 -1

4x = 6

x= 6/4 reduza por 2

x = 3/2