Question

1. x + 2y +1 = 0
2x - 3y - 12 = 0 by cross multiplication
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Answer 1

Answer:

1x+2y+1=0

2x-3y-12=0

Explanation:

2x-3y=5xy

5xy-12=7

Answer 2

⇒ x/(2×−12)−(1×−3) = y/(1×2)−(1×−12)

= 1/(1×−3)−(2×2)

⇒x= −7/−21

=3

⇒y= −7/14

=−2