solve the following briefly:
(1) Find the value ot k if x=2,y=1 is a solution of the equation 2x+3y=k.
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Ex 4.2, 4Find the value of k, if x = 2, y = 1 is a solution of the equation 2x + 3y = k. Given 2x + 3y = kPutting x = 2 and y = 12(2) +3(1) ...
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2x+3y=k
2 (2)+3 (1)=k
4+3=k
k=7
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