Question

37p+53q=69; 53p+37q=21 BY SUBSTITUTION METHOD ​

Answer 1

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Here's ur answer

37p+53q = 69   ------(1)

53p+37q = 21   -------(2)

(1)+(2) =>

90p+90q = 90

p+q = 1       ------(4)

(1)-(2) =>

-16p+16q = 48

-p+q = 3      -------(3)

(3) + (4) =>

2q = 4

q = 2

p = 1-q

p = 1-2

p = -1

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