Question

Q8. The pair of equations 3x -
5y = 7 and -6x + 10y = -14 have

Answer 1

Step-by-step explanation:

no value of x and y

hope you understand.......

Answer 2

Answer:

The pair of equations 3x -

5y = 7 and -6x + 10y = -14 have no solutions.

Step-by-step explanation:

Given two equations are

$3x - 5y = 7.....(1)$

and $- 6x + 10y = - 14.......(2)$

Now we want to solve these two equations,

From equation (1),

$3x - 5y = 7$

$3x = 7 + 5y$

$x = \frac{7 + 5y}{3} .....(3)$

and from equation (2),

$- 6x + 10y = - 14$

$- 6x = - 14 - 10y$

$x = \frac{10y + 14}{6} ....(4)$

From equation (3) and (4),

$\frac{7 + 5y}{3} = \frac{10y + 14}{6}$

By cross multiplication,

$42 + 30y = 30y + 42$

In this equation y has no solution.

Similarly x has no solution.