Respuesta :

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Answer:

1). 6x +7 = 4x +19

6x – 4x = 19 – 7

2x = 12

x= 12/2

x= 6

2). 3x + 3 = 7x – 5

7x – 3x = 3 +5

4x = 8

x= 8/4

x = 2

3). 39 – 2v = 3v + 4

3v +2v = 39 – 4

5v = 35

v = 35/ 5

v = 7

4). 4n + 6 = 18 – 2n

4n +2n = 18 – 6

6n = 12

n = 12/ 6

n = 2

I hope I helped you^_^