MCQ
$x=2, y=1$ is a solution of the linear equation
- ✓$2 x+7 y=11$
- B$4 x-2 y=5$
- C$x-3 y=5$
- D$3 x-4 y=8$
✓
Answer
Correct option: A.
$2 x+7 y=11$
(a) : (a) L.H.S. $=2(2)+7(1)=11=$ R.H.S.
(b) L.H.S, $-4(2)-2(1)=6 \neq$ R.H.S.
(c) L.H.S. $=2-3(1)=-1 \neq$ R.H.S.
(d) L.H.S. $=3(2)-4(1)=2 \neq$ R.H.S.
$\therefore x=2, y=1$ is the solution of the equation $2 x+7 y=11$
(b) L.H.S, $-4(2)-2(1)=6 \neq$ R.H.S.
(c) L.H.S. $=2-3(1)=-1 \neq$ R.H.S.
(d) L.H.S. $=3(2)-4(1)=2 \neq$ R.H.S.
$\therefore x=2, y=1$ is the solution of the equation $2 x+7 y=11$
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