5(a-b) in verbal expression

Five times the difference of a and b

"The difference of a and b" is the result of subtracting the two, so it translates to a-b.

Five times that quantity leads to 5*(a-b) or 5(a-b)

Explanation

The given equation y = 2x+3 is in the form y = mx+b

Compare the terms to see that 2x matches with mx, so m = 2

The other term matches with b, so b = 3

m is the slope and b is the y intercept, so that's how I got those answers above.