Class 10MathematicsPair of Linear Equations in Two VariablesMix Examples - Pair of Linear Equations in Two Variables
EasyIf $(x, -1)$ is the solution of the linear equation of two variables $3x - y = 7$,then $x = \ldots$
- A$2$
- B$\frac{8}{3}$
- C$3$
- D$-2$
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Similar Questions
If $3x + 5y = 8$ and $5x + 3y = 24$,then $x - y = \ldots$
Medium
View SolutionIn cyclic quadrilateral $ABCD$,$m \angle A = 2x + 4$,$m \angle B = y + 3$,$m \angle C = 2y + 10$,and $m \angle D = 4x - 5$. Find the measures of all four angles.
Difficult
View SolutionSolve the following pair of linear equations by the method of substitution: $3x + y + 1 = 0$ and $2x - 3y + 8 = 0$.
Easy
View SolutionThe solution set of a pair of equations $5x - 5y = -5$ and $\frac{3x}{2} - \frac{3y}{2} + \frac{3}{2} = 0$ is.........
Easy
View SolutionFor the pair of equations $\frac{2}{x} + \frac{3}{y} = 3$ and $\frac{3}{x} + \frac{2}{y} = 7$,find the value of $\frac{3}{x} + \frac{3}{y}$.
Medium
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