4b-5(3b+5)=3b+3

Question

I am trying to help my son with this problem

Answer 1

4b - 5(3b + 5) = 3b + 3

4b - 5x3b - 5x5 = 3b + 3

4b - 15b - 25 = 3b + 3

- 11b - 25 = 3b + 3

 

Now subtract 3b from both sides of the equation:

- 11b - 25 - 3b = 3b + 3 - 3b

- 14b - 25 = 3

 

Now add 25 to both sides of the equation:

- 14b - 25 + 25 = 3 + 25

- 14b = 28

 

Now divde both sides of the equation by - 14 to find b:

- 14b/(-14) = 28/(-14)

b = - 2                                          This is the solution to the equation.