Question

Simplify this expression (d + 5) + (d + 5) + (d + 5)

Answer 1

3d + 15

Explanation:

(d + 5) + (d + 5) + (d + 5) =

d + 5 + d + 5 + d + 5 =

(d + d + d) + (5 + 5 + 5) =

3d + 15