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Linear Equations in Three Variable

12. If (2p+1,...

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12. If (2p+1,p) is a solution of equations 2x+5y=20, then find the value of p

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(2 p - 1, p)

is a solution of equation

10 x - 9 y = 15

, find the value of

p

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Q. For what value of 'p' the pair of linear equations

(p + 2) x - (2 p + 1) y = 3 (2 p - 1)

2 x - 3 y = 7

will be have a unique solution.

Q. Find the values of

p

q

for which the following system of linear equations has infinite number of solutions:

2 x + 3 y = 1, (p + q) x + (2 p - q) y = 21

p = (- 2)

, find the value of

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2^{p + 2} + 2^{p + 1} = 96

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p

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Linear Equations in Three Variable

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