Combine like terms:
-r-10r
We can always add variables as long as they are the same. So we can not add 10x+20y. That's impossible.
We can't add 3r^2+10r. That's also impossible.
However, we have the same variable, r. So we can add -r-10r. And the answer is:
-11r
Hope this helps! :)
Answer: 22.9890 is the answer
Answer:
Alternative
Step-by-step explanation:
Answer:
(-4,3), (-4,-3), (-4,3), (-8,6)