2(x-9) = 7
Let the unknown number = x
The difference between the unknown number and 9:
x - 9 = 7
Twice the difference betweenn the unknown number and and is equal to 7:
2(x-9) = 7
Since we were asked to teranslate and not solve, the translation into an equation becomes:
2(x-9) = 7
9:
