The first one is 31.875 and the second is 12 I don't know how to explain to get it. Sorry
Answer: electricity can be used to create magnetism
Step-by-step explanation:
1.) (-2,3)
2.) a=175/43 b= -70/43
3.)(7,3)
I believe i am right
I haven't one this in a long time
If i am can i get Brainliest
1.) 1+10a-5a
Subtract 5a from 10a
Final Answer: 1+5a
3.) x-9-3x
Subtract 3x from x
Final Answer: -9-2x
5.) 1-4n+2n-1
Subtract 1 from 1
-4n+2n
Add
Final Answer: -2n
7.) 10k-3k
Subtract
Final Answer: 7k
9.) 5r+4-4
Subtract
Final Answer: 5r