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Use Substututio to solve each problem. 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....

This question was answered on Jan 20, 2013. View the Answer
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)
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Sol: (1) Use Substitution to solve the problem. 5 x - 3 y = -2 -x - 2 y = 3 Now in order to solve this system by using substitution, we need to solve (or isolate) one variable. I'm going to solve...

This question was asked on Jan 19, 2013 and answered on Jan 20, 2013.

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