Solve the system using elimination.

3x + 3y = –9
3x – 3y = 21

solve the system using elimination.

5x + 2y = –19
2x – 2y = –16

solve the system using elimination.

2x + 3y = 1
2x – 3y = –17

solve the system using elimination.

2x + 3y = –5
5x – 3y = 40

solve the system using elimination.

x + 4y = 4
x – 4y = –12

Solve the word problem. the table shows the low outside temperatures for monday, tuesday, and wednesday. by how many degrees did the low temperature increase from monday to tuesday? this function table shows the outside temperature for a given a. 21.1⁰ b. 8.6⁰ c. 4.9⁰ d. 3.9⁰(the picture is the graph the the question is talking about.)

What is the value of the expression 9+n/3-6 when n = 12? 1. 5. 7. 12.

Apublic library wants to place 4 magazines and 9 books on each display shelf. the expression 4s+9s represents the total number of items that will be displayed on s shelves. simplify the expression