1.

Find the value of k, if x = 2, y = 1 is a solution of the equation 2x + 3y = k.

Answer»

2x + 3y = k 

If x = 2, y = 1, then k = ? 

2x + 3y = k 

2(2) + 3(1) = k 

4 + 3 = k 

7 = k 

∴ k = 7.



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