Class 10MathematicsPair of Linear Equations in Two VariablesMix Examples - Pair of Linear Equations in Two Variables
EasyFor the linear equation in two variables $3x + 2y = 8$,if the value of $x$ is $-2$,then $y = \dots$
- A$-5$
- B$-7$
- C$7$
- D$2$
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Similar Questions
The sum of the digits of a two-digit number is $13$. The number obtained by interchanging the digits is $9$ more than the original number. Find the original number.
Medium
View SolutionDo the following pair of linear equations have no solution? Justify your answer.
$3x + y - 3 = 0$
$2x + \frac{2}{3}y = 2$
$3x + y - 3 = 0$
$2x + \frac{2}{3}y = 2$
Medium
View SolutionSolve the following pair of equations: $(a \neq 0, b \neq 0)$
$\frac{2}{a} + \frac{3}{b} = 1$
$\frac{1}{a} + \frac{1}{b} = 1$
$\frac{2}{a} + \frac{3}{b} = 1$
$\frac{1}{a} + \frac{1}{b} = 1$
Difficult
View SolutionWrite a pair of linear equations which has the unique solution $x = -1, y = 3$. How many such pairs can you write?
Difficult
View SolutionDo the following equations represent a pair of coincident lines? Justify your answer.
$-2x - 3y = 1$
$6y + 4x = -2$
$-2x - 3y = 1$
$6y + 4x = -2$
Medium
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