Question

x+y=5 and 2x-3y =5 by cross multiplication method​

Answer 1

Answer:

x=4, y=1

Step-by-step explanation:

X+y-5=0

2x-3y-5=0

X y 1

1 -5 1 1

-3 -5 2 -3

$\frac{x}{1 \times (- 5 )- (- 3 \times - 5)} = \frac{y}{( - 5 \times 2) - ( - 5 \times 1) } = \frac{1}{(1 \times - 3) - (2 \times 1)}$

$\frac{x}{ - 20} = \frac{y}{ - 5} = \frac{1}{ - 5}$

$x = \frac{ - 20 }{ - 5} = 4$

$y = \frac{ - 5}{ - 5} = 1$