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Linear Equation in One Variable

Choose the li...

Question

Choose the linear equations among these.

A

2x + 4y - 7z = 9

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B

6p - 9q + r = 0

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C

2xy + 7xz - 9zy = 5

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D

4x + 6y - z

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Solution

The correct options are
A 2x + 4y - 7z = 9
B 6p - 9q + r = 0
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Similar questions

Q. The equations

2 x + 4 y + z = 0, x + 2 y - 2 z = 5, 3 z + 6 y + 7 z = 2

Q. The system of linear equations

x + y + z = 15 4 x + 6 y + 7 z = 24 k^{2} x + 6 y + 7 z = k + 22

Then the incorrect statement about the system of equations is

Q. Show that each of the following systems of linear equations is consistent and also find their solutions:
(i) 6x + 4y = 2
9x + 6y = 3

(ii) 2x + 3y = 5
6x + 9y = 15

(iii) 5x + 3y + 7z = 4
3x + 26y + 2z = 9
7x + 2y + 10z = 5

(iv) x − y + z = 3
2x + y − z = 2
−x −2y + 2z = 1

(v) x + y + z = 6
x + 2y + 3z = 14
x + 4y + 7z = 30

(vi) 2x + 2y − 2z = 1
4x + 4y − z = 2
6x + 6y + 2z = 3

Q. Solve the following system of linear equations in three variables.
2x - 7y + 11z = 0
6x - 8y + 7z = 0
3x + 4y + 5z = 35

Q. The system of linear equations

x + y + z = 15 4 x + 6 y + 7 z = 24 k^{2} x + 6 y + 7 z = k + 22

Then the incorrect statement about the system of equations is

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