Linear Equations

If $3x+\frac{1}{4y}=0$ then find the value of xy ?

If the product of two numbers is $320$ and their ratio is $1 : 5$, what is the difference between the squares of these two numbers?

Find the values of k for which $9x^2+kx+1=0$ ,has both equal roots.

If $2x+3y=31$ and $7x=5y$, then what is the value of $2y-x$?

The graph of the equation $4x-5y=20$ intersects the x-axis at the point -

If$3x+7y=75$ and $5x-5y=25$. What is the value of $x+y$?

The expression $x-3$ is read as

If $2x + 3y = 34$and $\frac{x+y}{y}=\frac{13}{8}$then the value of $5y + 7x$ is-

If$0.5x + 0.7y = 0.5 and 0.7x + 0.5y = 0.7$, then the value of $x+y$is-

Which of the following interchange of Signs would make the equation correct?

20 Ã- 4 + 5 ÷ 6 = 28

If $6x = 45y$, then the value of$(x/y-1)$ is

The sum of six consecutive even numbers of Set $A$ is $402$. What is the sum of four consecutive numbers from another Set $B$ whose lowest number is $15$ less than double the lowest number of Set $A$?

The intersecting point of the graphs $x-y=0 and x+y-2=0$ is

Which of the following is the solution of the equation $\frac{q}{2}=7$.

Which of the following is the equation for the statement: one-fourth of a number minus $4$ gives $4$.

The graph of the equation$4x-5y=20$  intersects the x axis at the point -

If the relation $6x -9 = a (x+1) + b(x -2)$be an identity of x, then the values of a and b are -

Raman's present age is three times his daughter's and nine-thirteenth of his mother's present age. The sum of the present ages of all three of them is $125$ years. What is the difference between the present ages of Raman's daughter and Raman's mother?

If $3x-5y=5$ and $\frac{x}{x+y}=\frac{5}{7}$, then what is the value of $x-y$ ?

If two line$ax + y = 2 and 3x + y = 4$are parallel to each other, then what is the value of a?