Question

*Which of the following is one of the solutions of equation 2x + y = 7?*

1️⃣ (0, 7)
2️⃣ (2, 3)
3️⃣ (4, −1)
4️⃣ All of the above​

Answer 1

$\textbf{Given:}$

$\mathsf{1.\;(0,7)}$

$\mathsf{2.\;(2,3)}$

$\mathsf{3.\;(4,-1)}$

$\textsf{4.\;All of the above}$

$\textbf{To find:}$

$\textsf{A solution of the equation 2x+y=7 from the given options}$

$\textbf{Solution:}$

$\underline{\mathsf{Option\;1.(0,7)}}$

$\mathsf{L.H.S=2(0)+7=7=R.H.S}$

$\therefore\textsf{(0,7) is a solution}$

$\underline{\mathsf{Option\;2.(2,3)}}$

$\mathsf{L.H.S=2(2)+3=7=R.H.S}$

$\therefore\textsf{(2,3) is a solution}$

$\underline{\mathsf{Option\;3.(4,-1)}}$

$\mathsf{L.H.S=2(4)+(-1)=7=R.H.S}$

$\therefore\textsf{(4,-1) is a solution}$

$\textbf{Answer:}$

$\textsf{Option 4.All of the above}$

$\textbf{Find more:}$

If X=2p+1 and y=p-1 is a solution of the linear equation 2x-3y+5=0, then find the value of p.​

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