Question

solve by cross multiplication 17x-10y=118 5x-6y=30​

Answer 1

eq are

17x -10y-118=0

5x-6y-30 =0

$\frac{x}{30.( - 10) - 118(6)} = \frac{ - y}{ - 30.17 + 118.5} \\ = \frac{1}{17.( - 6) + 10.5} \\ \frac{x}{ - 300 - 708} = \frac{1}{ - 102 + 50} \\ \frac{x}{1008} = \frac{1}{ 52} \\ x = \frac{504}{26} = \frac{252}{13} \\ \frac{ - y}{510 -590 } = \frac{ - 1}{52} \\ y = \frac{ - 80}{52} = \frac{20}{13}$

CROSS MULTIPICATION METHOD