Answer:
[tex]-4d[/tex]
Step-by-step explanation:
We can subtract a term from another if they have the same variable. Both [tex]3d[/tex] and [tex]7d[/tex] have the variable [tex]d[/tex], so we can subtract them.
When subtracting these terms, we subtract the coefficients and keep the variable.
So:
[tex]3d - 7d = 3-7(d) = -4d[/tex]
Hope this helped!
Answer:
-4d
Step-by-step explanation:
3d - 7d
=> 3 x D - 7 x D
=> (3 - 7)(D)
=> -4 x D
=> -4d
