Answer:
1.) -4
2.) 3
3.) 4
If you need a little extra help knowing what to do with these problems, you should draw a number line that includes negative and positive numbers. You can count along the number line. It's a good visual aid.
Answer:
30(2)-6
Step-by-step explanation:
30 computers in 2 labs minus the 6 broken computers.
For eliminating you need to have a variable that cancels the other out and in this case 2x and -2x do. Then you want to take -3y+9y and add the numbers after the equal sign. -9+3
It is 110
Slope of the line is 10x So you will earn 110$ in 12 hours.
