SOLUTION: Solve each system of equations.
1. 5x + 4y - z = 1
2x - 2y + z = 1
-x - y +z =2
2. x + y + z = 0
2x +3y + 2z = -1
x - y + z = 2
3. x + 2y = 0
4x - z =
Algebra.Com
Question 309474: Solve each system of equations.
1. 5x + 4y - z = 1
2x - 2y + z = 1
-x - y +z =2
2. x + y + z = 0
2x +3y + 2z = -1
x - y + z = 2
3. x + 2y = 0
4x - z = 4
5y + z = -1
Found 2 solutions by richwmiller, JBarnum:
Answer by richwmiller(17219) (Show Source): You can put this solution on YOUR website!
rules violations
one problem at a time
no similar problems
Answer by JBarnum(2146) (Show Source): You can put this solution on YOUR website!
well once you see how to solve one theres no need for me to solve the other 2 as they are using the same method to solve so all you need is one example.
_ _ _ _ _ _ _ _
1st equation with z substitute
2nd equation with z substitute
_ _ _ _ _
add like terms
_ _ _ _ _
multiply this line by 3
_ _ _ _ _
add the 2 lines together
_ _ _ _ _
_ _ _ _ _
multiply this line by 3
multiply this line by 4
_ _ _ _ _
subtract these two lines
_ _ _ _ _
_ _ _ _ _
solve for z
RELATED QUESTIONS
Solve each system of equations. please help me with these.. thanks
5x + 4y - z = 1
(answered by MathTherapy)
Number One:
5x + 4y - z = 1
2x - 2y + z = 1
-x - y + z = 2
Number Two:
x + y + z (answered by Edwin McCravy)
using matrices solve each system of equations x+y+z=0, 2x+3y+2z=-1,... (answered by ewatrrr)
solve system of equation.
x+2y+z=4
2x+y-z=-1... (answered by jim_thompson5910)
solve using cramer rule :- 3x+2y+4z=19 2x-y+z=3 6x+7y-z=7
x-y+z= 1 x+y+z=2 2x-y+z=5... (answered by ikleyn)
solve using cramer rule :- 3x+2y+4z=19 2x-y+z=3 6x+7y-z=7
x-y+2z=1 x+y+z=2 2x-y+z=5... (answered by ikleyn)
solve the system
x+y+z=-1
x-y+3z=-17
2x+y+z=-2
Solve the system
x-y+2z=7... (answered by solver91311)
Solve each of these system of equations.
1) x + 2y + z = 10
2x - y + 3z = -5
(answered by Alan3354)
x+y+z=2
-x+2y+3z=2
2x-3y-z=1
x-y-z=0
solve linear... (answered by JBarnum)