1. Use the elimination method to solve the system of equations
3x-24=42
5x+7y=-23
The solution set is {( , )}
#2.
5x-6y-4=0
6x+5y-78=0
The solution set is {( , )}
#3
3x-4y=3
-6x+8y=-6
The solution set is {( , )}
#4
2x+3y=1
4x+6y=2
The solution set is {( , )}
#5 Solve
x+y+z=-2
2x+4y+2z=-4...