Question

if x=2 y=1 is a solution of the equation 2x + 3 -k =0 find the value of k​

Answer 1

CORRECT QUESTION.

• If x = 2 and y = 1 is a solution of the equation 2x + 3y - k = 0, find the value of k.

ANSWER.

• The value of k is 7.

SOLUTION.

Given –

→ 2x + 3y - k = 0

→ k = 2x + 3y

Now, put x = 2 and y = 1 in this equation. We get,

→ k = 2 × 2 + 3 × 1

→ k = 4 + 3

→ k = 7

★ Hence, the value of k is 7.

Answer 2

Answer:

let eq be p(x)=2x+3-k=0

P(2)=2×2+3-k=0

=4+3-k=0

=7-k=0

=-k=-7

=k=7

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