multiply 5 and sum of twice of d and 10
Twice d means we multiply d by 2:
2d
The sum of twice d and 10 means we add 2d to 10
2d + 10
We multiply this quantity by 5:
5(2d + 10)
Twice d means we multiply d by 2:
2d
The sum of twice d and 10 means we add 2d to 10
2d + 10
We multiply this quantity by 5:
5(2d + 10)