The sum of two times a number and five is eight

The answer is 1.5

To solve a question like this, you need to put X on one side of the equation and the the numbers on the opposite side.

2x + 5 = 8

To solve for X...
1. subtract 5 from both sides to get 2x = 3
2. divide both sides by 2 to get X by itself
3. x = 1.5

Hope this helps!

1. isolate the variable, in this case, d. subtract 35.5 on both sides of the equation.2. 52 subtracted by 35.5 is 16.53. therefore your answer would be d= 16.5this is the basics of pre algebra, isolating variable through adding, subtracting, multiplying, and dividing, if you have any other questions to ask just comment!