Pair of Linear Equations in Two variables — Maths STD 10 — Question
CBSE BoardEnglish MediumSTD 10MathsPair of Linear Equations in Two variables1 Mark
MCQ
$x=2, y=3$ is a solution of the linear equation:
✓
$2 x+3 y-13=0$
B
$3 x+2 y-31=0$
C
$2 x-3 y+13=0$
D
$2 x+3 y+13=0$
✓
Answer
Correct option: A.
$2 x+3 y-13=0$
(a) We have, $ x=2 \text { and } y=3 $ Let us substitute the above values in the equation $2 x+3 y-13=0$, we get $ \begin{aligned} LHS & =(2 \times 2)+(3 \times 3)-13=4+9-13=13-13=0 \\ RHS & =0 \end{aligned} $ Since, LHS $=$ RHS, the required linear equation is $2 x+3 y-13=0$. Hence, the correct option is (a).
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