Question

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

Answer:

2x+3y=k---1

here they have given x=2,y=1

substituting x and y in 1

2[2]+3[1]=k

4+3=k

7=k

so the value of k is 7