Answer:
-9x^9y^5
Step-by-step explanation:
Do the multiply first:
-16x^9y^5+7x^9y^5
=x^9y^5(-16+7)
=-9x^9y^5
Hello :D
Answer:

The answer should have a negative sign.
Step-by-step explanation:
First, you do is divide by 17 from both sides of an equation.

Then, you simplify and solve to find the answer.

, which is our answer.
I hope this helps you!
Have a great day! :D
There the same thing they both weigh the same thing hope it helps and have a great day!
3 x 7 because three, seven times is 21
Answer: 
<u>Step-by-step explanation:</u>
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