Question

15 plus 3 times a number is 8 times the number. What is the number?

Answer 1

The correct answers is 3

Explanation:

The equation would be 15 + 3x = 8x.

i subtracted 3x from the left side, and subtracted 3x from the right side.

(15 + 3x = 8x

-3x -3x = 15 = 5x)

Then i divided 15 by 5 which gave me 3.

Answer 2

x=3

Explanation:

15 + 3x = 8x

- 3x -3x

15=5x

15/5=3

X=3