Question

Five times the sum of a number and one is 115. What is the number? Use x as your variable.

Answer 1

Write the follow equation accordin the text of the task:


`5(x+1)=115`

Solve the equation:


`5(x+1)=115\\ \\ 5x+5=115\\ \\ 5x=115-5\\ \\ 5x=110\\ \\ x=(110)/(5)\\ \\ x=22`

Answer 2

The initial equation is:

`5(x+1)=115`

Let's transform it for x:

`5x+5=115`

... distract 5:

`5x=110`

... divide both sides by 5:

`x=22`