How do you find the numbers if twice the sum of 5 times a number and 8?

1 Answer
May 20, 2018
  • Twice the sum of . . .

This means 2 times whatever follows in the sentence

  • 5 times a number

Let x represent the unknown number (a number) that 5 is being multiplied by

Therefore, 5 times a number is written as:

5xxx or 5x

  • 5 times a number (5x) and 8

5x and 8 are being added as stated earlier in the sentence
"the sum of. . ."

5 times a number and 8 is written as:

5x + 8

Now, apply "twice the sum of..." to 5x+8

2(5x+8)

2(5x+8) is the expression of " twice the sum of 5 times a number and 8"

Although, the value of x, the unknown number, cannot be found because there is no value given for the solution such as 2(5x+8)=12