Question

2x + y =-2 ; 3x - y =7

Answer 1

Heya!!

$2x + y = - 2 \\ 2x = - 2 - y \\ x = \frac{ - 2 - y}{2} = > equation \: 1$
$3x - y = 7 \\ 3x = 7 + y \\ x = \frac{7 + y}{3} = > equation \: 2$

Now, equation 1 = equation 2

$\frac{ - 2 - y}{2} = \frac{7 + y}{3} \\ 3( - 2 - y) = 2(7 + y) \\ - 6 - 3y = 14 + 2y \\ - 3y - 2y = 14 + 6 \\ - 5y = 20 \\ y = \frac{20}{ - 5} = - 4$

$x = \frac{7 + y}{3} \\ x = \frac{7 - 4}{3} \\ x = \frac{3}{3} = 1$

Hope it helps..!!!

Answer 2

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