Respuesta :

Answer:

b=4

Step-by-step explanation:

3b-4b+3+1=0

-b=-4

b=4

Answer:

1/2

Step-by-step explanation:

1. multiple 3

3b + 1 = 4b - 1

2. subtract 3b from both sides

1 = 1b - 1

3. add 1 from both sides

2 = 1b

4. divide 1 from both sides

b = 1/2