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Name _____________________________
Date ___________________

Systems of Equations in Three Variables
(Answer ID # 1036369)
Solve each system of equations.
8
  -
7
  -
155
  -
12
4
  -
6
  -
1411
13
9
2
  -
1
  -		3
10
  -

 

down 1.

-3x - 12y + 4z = -61
5x + 7y - 10z = 346
4x - 4y - 4z = 160
Answer:
z  =  ?

 down 2.

-3x + 6y + 2z = 260
-10x - 5y - 9z = 309
3x - 4y = -246
Answer:
x  =  ?

 down 3.

10x + 11y - 12z = -501
-5x - 5y + 5z = 195
-9x + 5z = -46
Answer:
x  =  ?
down 4.

11x + 10y - 3z = -589
-6x + 12y - 2z = -214
-9x - 7y + z = 465
Answer:
y  =  ?

 down 5.

4x - 2y + 5z = -274
x - 7y - 6z = 349
-8x - y + 12z = 97
Answer:
z  =  ?

 down 6.

-2x + y - 10z = 24
2x + 2y + 3z = -82
-x - 2y - z = 53
Answer:
y  =  ?
down 7.

4x + 9y - 12z = 760
11x - 2y + 3z = -492
-7x - y - 5z = 352
Answer:
z  =  ?

 down 8.

6x + 6y - 2z = 106
-2x - 5y + z = -107
4x + 8y - 10z = 454
Answer:
z  =  ?

 down 9.

3x - 11y - 9z = -126
-10x - 4y - 8z = -60
-x - y + 3z = 0
Answer:
y  =  ?
across 1.

-6x + 3y - 11z = 393
-6x + 10y - 2z = -210
-4x - 8y + 9z = -15
Answer:
x  =  ?

 across 4.

-3x - 9z = 18
-8x - 5y + 10z = 54
-4x + 8y + 5z = -57
Answer:
y  =  ?

 across 6.

-5x - 12y - 7z = 136
x + 7y - 4z = -52
-6x - y - 8z = -151
Answer:
y  =  ?
across 7.

-2x - 6y + 4z = 94
9x + 7y + 8z = -563
-5x - 11y + 12z = 47
Answer:
y  =  ?

 across 10.

-x - 6y + z = 43
-2x + y + z = 3
11x - 7y + 12z = 80
Answer:
y  =  ?

 across 11.

-5x - 5y - 3z = 64
-9x + 4y + 8z = 433
-12x + 11y - 7z = -389
Answer:
z  =  ?
across 12.

-6x - 4y - 2z = -22
-12x - 7y + 5z = -87
5x - 5y + 5z = -15
Answer:
y  =  ?

 across 13.

-5x + y - 5z = -39
-3x - 3y - 3z = 9
-2x + 5y - 2z = -57
Answer:
z  =  ?

 across 14.

5x - 2y - 2z = -186
-6x + y + z = 247
-11x - 2y + 9z = 100
Answer:
y  =  ?
across 15.

-2x - 11y + 3z = 282
-2x - 3y - 3z = -140
6x + y - 8z = -193
Answer:
z  =  ?

 

Answer Key
-
-32
45-
22
-8
-23
2147
0
9
-
-12
489
-6
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