Hello!
Let's simplify the expression:
seven = 7
Times is used when multiplying
times = ×
Difference is used when subtracting. To find the difference between y and 1, it would be: y - 1
the difference of y and one = y - 1
That equals: 7 × (y - 1)
[tex]\framebox {7 \times \big( y - 1 )\big}[/tex]