When 3⩽𝑥⩽5 and 7⩽𝑦⩽9 the smallest possible value for  2𝑦−𝑥 is.

To find the smallest possible value for the expression 2y - x, we need to minimize the value of y and maximize the value of x.

Step 1: Identify the minimum and maximum values of x and y. From the given, x ranges from 3 to 5 and y ranges from 7 to 9.

Step 2: Substitute the minimum value of y and the maximum value of x into the expression. So, substitute y = 7 (minimum value of y) and x = 5 (maximum value of x) into the expression 2y - x.

Step 3: Calculate the value. 2(7) - 5 = 14 - 5 = 9

So, the smallest possible value for 2y - x is 9.