Class 10MathematicsPair of Linear Equations in Two VariablesMix Examples - Pair of Linear Equations in Two Variables
EasyThe sum of the digits of a two-digit number is $9$ and the difference is $1$. The number is ............
- A$27$
- B$54$
- C$87$
- D$63$
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Similar Questions
Find the value of $k$ under the given condition for the following pair of linear equations: $2x - 3y = 1$ and $kx + 5y = 7$,such that the system has a unique solution.
Medium
View SolutionSolve the following pair of equations by the cross-multiplication method:
$\frac{x}{a} - \frac{y}{b} = 0$
$ax + by = a^2 + b^2$
$\frac{x}{a} - \frac{y}{b} = 0$
$ax + by = a^2 + b^2$
Easy
View SolutionThe graph of the equation ............. passes through the origin.
Easy
View SolutionSolve the following pair of linear equations in two variables using a graph: $y = 2$,$x + 4y = 10$.
Medium
View SolutionIf the following pair of equations has infinite solutions,then find the value of $k$:
$5x + 2y = k$
$10x + 4y = 3$
$5x + 2y = k$
$10x + 4y = 3$
Medium
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