Question

please help me its urgent why are you deleting my question yar​

Answer 1

Step-by-step explanation:

$x + y = 8 - - - - (i)$

$p - q = 6 - - - - (ii)$

$x + p = 13 - - - - (iii)$

$y + q = 8 - - - - (iv)$

Subtracting Equation (iii) from Equation (i) -

$(x + y) - (x + p) = 8 - 13$

$x + y - x - p = - 5$

$y - p = - 5 \: - - - - (v)$

Adding Equation (iv) to Equation (ii) -

$(p - q) + (y + q)= 6 + 8$

$p - q + y + q = 14$

$p + y = 14$

$or \: \: \: y + p = 14 - - - (vi)$

Adding Equation (v) to Equation (vi) -

$(y - p) + (y + p) = - 5 + 14$

$y - p + y + p = 9$

$2y = 9$

$y = \frac{9}{2}$

$y = 4.5$

Substituting the value of y in Equation (vi) -

$y + p = 14$

$4.5 + p = 14$

$p = 14 - 4.5$

$p = 9.5$

Substituting the value of y in Equation (i) -

$x + y = 8$

$x + 4.5 = 8$

$x = 8 - 4.5$

$x = 3.5$

Substituting the value of y in Equation (iv) -

$y + q = 8$

$4.5 + q = 8$

$q = 8 - 4.5$

$q = 3.5$