Question

Please solve question no. 4 Its important please fast.

Answer 1

Given : 

$\frac{x}{10} + \frac{y}{5} = -1 ------ (1)$

Multiply equation (1) with (5), we get

$\frac{5x}{10} + \frac{5y}{5} = -5$

$\frac{x}{2} + y = -5 ---- (2)$




$\frac{x}{8} + \frac{y}{6} = -1 ---- (3)$

Multiply equation (3) with 4, we get

$\frac{4x}{8} + \frac{4y}{6} = -4$

$\frac{x}{2} + \frac{2y}{3} = -4 ---- (4)$

On solving (2) & (4), we get

$\frac{x}{2} + y = -5$

$\frac{x}{2} + \frac{2y}{3} = -4$

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$\frac{-y}{3} = 1$

y = -3.


Substitute y = -3 in (2), we get

$\frac{x}{2} + (-3) = -5$

$\frac{x}{2} = -5 + 3$

$\frac{x}{2} = -2$

x = -4.


Therefore x = -4 and y = -3.


Hope this helps!