Linear Equation...

For what value of p does the linear equation (p - 1)x + (2p - 5)y = 11 pass through the point (3, 5)?

If C(3, 4) is a point through which the line, x + (2k)y + 13 = 0 passes, then the value of k is

A total of 500 tickets to a show are sold. If an adult ticket costs £3, a child ticket costs £2 and a total amount of £1300 is collected, then how many tickets of each kind are sold?

Which of the following points satisfies the equation, x - 8y = 12?

If 7x + 4y = 18 and x - y = 0, then find the value of 11(x + y).

How many non-negative integer pairs (x, y) satisfy the equation 3x + 4y = 21?

The population of city A is x and that of city B is y. If population of city A is 7,00,000 less than three times the population of city B, then:

(1)What will be the linear equation for the given data?
(2) If the population of City A is 8,00,000 then what is the difference between the population of city A and city B?