Question

3/4x+2/3y=-1/3and3/4x+1/2y=-1/8

Answer 1

$\frac{3}{4}x + \frac{2}{3}y = - \frac{1}{3} ....(i) \\ \frac{3}{4} x + \frac{1}{2}y = -\frac{ 1}{8} ....(ii) \\ \frac{3}{4} x = - \frac{1}{3} - \frac{2}{3} y \\ x = - \frac{4}{3}y ....(iii) \\ in \: (ii) \\ \frac{3}{4} \times \frac{ - 4}{ \: \: \: 3 }y + \frac{1}{2} y = - \frac{1}{8}(from \: iii) \\ - 1y + \frac{1}{2} y = - \frac{1}{8} \\ y = \frac{1}{4} ... \: (iv) \\ in \: (iii) \\ x = - \frac{4}{3}y \\ x = - \frac{4}{3} \times \frac{1}{4} (from \: iv) \\ x = - \frac{1}{3}$