Linear Equation In Two Variable — Maths STD 10 — Question
Gujarat BoardEnglish MediumSTD 10MathsLinear Equation In Two Variable2 Marks
Question
Solve the system of equations: $x - 2y = 0, 3x + 4y = 20$
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Answer
The given equations are as follows:
$x - 2y = 0 ....(i)$
$3x + 4y = 20 ...(ii)$
On multiplying $(i)$ by $2,$ we get
$2x - 4y = 0 ...(iii)$
On adding $(ii)$ and $(iii)$, we get
$4 - 2y = 0$
$\Rightarrow 4 = 2y$
$\Rightarrow y = 2$
Hence, the required solution is $x = 4$ and $y = 2$.
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