Saved Bookmarks
| 1. |
Q.9 Find the value of k, if x = 1, y = 2 is a solution of the equation 2x + 3y =k.a. 5b. 6c. 7d. 8 |
|
Answer» Thevalueofk=7 Step-by-step explanation: \begin{gathered} GIVEN , \\linear \: equation \: in \\\: TWO \:variables \: x \: and\: y \: is \\\: 2x+3y=k \END{gathered} Given, linearequationin twovariablesxandyis 2x+3y=k
\begin{gathered} Substitute \: x=2 ,y=1 \: in \: the \: equation ,\\ we \: get \end{gathered} Substitutex=2,y=1intheequation, weget
2\times 2 + 3\times 1 = k2×2+3×1=k \implies 4+3=k⟹4+3=k \implies 7 = k⟹7=k Therefore, The \: value \: of \: k = 7Thevalueofk=7 •••♪ |
|