Find the difference 3 d and 7 d

Step-by-step explanation:

We can subtract a term from another if they have the same variable. Both and have the variable , so we can subtract them.

When subtracting these terms, we subtract the coefficients and keep the variable.

So:

Hope this helped!

-4d

Step-by-step explanation:

3d - 7d

=> 3 x D - 7 x D

=> (3 - 7)(D)

=> -4 x D

=> -4d