Question

Find the value of x and y 3x-y=2 ,5x-2y=1
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Answer 1

Answer:

Therefore, X= 3 and Y= 7.

Answer 2

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$\large\bold{3x-y = 2 - - - - (1)}$

$\large\bold{6x-2y = 4 ----(2)}$

$\large\bold{5x-2y = 1 - ---(3)}$

Subtracting Equation (2) from (3)

$\large\bold{(6x \: - 2y \: = 4) - (5x - 2y = 2}$

$\large\bold{=> x = 3}$

Now Put x = 3 in equation (1)

$\large\bold{3x-y = 2}$

$\large\bold{=> 3×3-y = 2}$

$\large\bold{=> 9-y = 2}$

$\large\bold{=> -y = 2-9}$

$\large\bold{=> -y = -7}$

$\large\bold{=> y = 7}$

$\large\bold{ Hence, x = 3}$

$\large\bold{and \: y = 7}$

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