Question 397962: 2. Solve the system by substitution.
6x - 5y = 11
7x + 5y = 2
(1, -2)
(1, -1)
(2, -1)
(2, -2)
3. Solve the system by substitution.
x - y = -11
x + 3y = 5
(-7, 4)
(-8, 4)
(-7, 5)
(-8, 5)
4. Solve the system using elimination by addition.
x + y + z = 0
-x + y - 2z = 6
2x + y + z = 0
(1, 1, -1)
(0, 2, -1)
(0, 2, -2)
No solution
5. Solve the system using elimination by addition.
2x + 2y + 3z = 23
2x + 2y + 5z = 33
-4x - 4y - 8z = -55
(0, 4, 5)
(0, 3, 6)
(0, 5, 4)
No solution
6. Solve the system using elimination by addition.
4x - 2y + 2z = 2
-x + y - 3z = -4
4x - 3y + 7z = 9
a.(-1, -7, 0)
b.(3, 3, 2)
c. {(2s – 3, 5s – 7, s) | s is any real number}
d. No solution
Answer by solver91311(24713)   (Show Source):
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