Question

Twice a number plus 6 times the number is 72

Answer 1

`(2 * x) + (6 * x) = 72 \\ 2x + 6x = 72 \\ 8x = 72 \\ x = 72 / 8 \\ x = 9`

Answer 2

9

Explanation:

Let the no be x

By the conditions given ,

2x + 6x = 72

8x = 72

x = 72/8

x = 9

therefore the no is 9