Use Substututio to solve each problem.1. 5x-3y=-2 -x-2y=3

Use Substututio to solve each problem.

1. 5x-3y=-2
-x-2y=3

Use elimination to solve each system

1. 4x-3y=-1
x+2y=19

2. x+2y+z=5
2x+y-3z=-2
3x+y+4z=-5

3. 3x-2y+z=6
3x+y-z=-4
-x+2y-2z=-8

4. x-2y+4z=6
x+y+13z=6
-2x+6y-z=-10

5 2x+y+3z-2w=-6
4x+3y+z-w=-2
x+y+z+w=-5
-2x-2y+2z+2w=-10

6. x+y+z+w=-1
-x+4y+z-w=0
x-2y+z-2w=11
-x-2y+z+2w=-3

Given an equation of a line, find it slope and intercepts.

y-2=4(x-3) and 2x-4y=8

Graph the straight line given the equation:

y=4x-6 and 5x+3y=-15

Write equations of lines given certain conditions:

Given 2 points what is the equation? Write the equation of a line parallel to y=3x-4 and thru (8,-2)

Solve a system of linear equations:

1. 2x-7y=12 and y=3x+8 (2 by 2)
2. 5x-6y=12 and 4x+3y=-10 (2 by 2)
3. x+2y+z=5 and 2x+y-3z=-2 and 3x+y+4z=-5 (3 by 3)