Subtract: 4x^3−6x^3+8x−9 from 7x^3−16x+18
plz will mark coolest

9x^3 - 24x + 36

Step-by-step explanation:

7x^3 - 16x + 18 - 4x^3 + 6x^3 - 8x + 18

=9x^3 - 24x + 36

-3x^3 - 8x + 9

Step-by-step explanation:

Hello!

(I would love to be marked coolest) Anyway, let's get started:

I'd believe you want 7x^3 − 16x + 18 - 4x^3 − 6x^3 + 8x − 9 solved.

In that case we first can group like terms:

7x^3 - 4x^3 - 6x^3 - 16x  +  8x + 18 - 9

Then we add similar elements:

Then, we add similar elements (again):

Finally, we can add and subtract our numbers:

Thus, the answer to your question is .

Hope this helps!

- Sahkfam

b. would be the answer : )

step-by-step explanation:

step 1: add -16x to both sides.

16x−4y+−16x=64+−16x  

−4y=−16x+64

step 2: divide both sides by -4.

−4y /-4 = -16x + 64/-4

answer:   y=4x−16

hope i'm right