Question

Translate the sentence into an equation.

Answer 1

Question:

Twice the difference of a number and 5 is equal to 9 .

Answer:

$2x - 5 = 9$

Step-by-step explanation:

Required

Translate

Let the number be x

Twice the number, x is $2x$

The difference between (above) and 5 is $2x - 5$

This equals to 9.

So, the expression becomes

$2x - 5 = 9$

Solving further:

$2x = 5 + 9$

$2x = 14$

Divide through by 2

$x = 7$

Hence, the number is 7