Question

Solve the following pair of linear equation
using cross multiplication method.

2x+3y + 5 = 0 ; 5x-3y+9=0​

Answer 1

Answer:

$2x + 3y = - 5$

$5x - 3y = 9$

$(2x + 3y = - 5) + (5x - 3y = 9)$

$7x = 4$

$x = \frac{4}{7}$

$y = \frac{43}{21} = 2 \frac{1}{21}$

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