144,764 views
19 votes
19 votes
The sum of 5 times a number and 4 equals 2. Find the number

User Yang
by
2.7k points

1 Answer

16 votes
16 votes

Answer:

-2/5

Step-by-step explanation:

Let the number = x

5 times a number = 5x

'Sum' means addition, therefore:

The sum of 5 times a number and 4 =5x+4

We then have the equation:


5x+4=2

We now solve for x.


\begin{gathered} 5x+4-4=2-4 \\ 5x=-2 \\ (5x)/(5)=-(2)/(5) \\ x=-(2)/(5) \end{gathered}

The number is -2/5.

User Miyagisan
by
2.5k points