Question

2x - 5y=14
x + 2y=-2
Solve by cross multiplication.
Explain it please.

Answer 1

Step-by-step explanation:

you can use formula 2312

first column as consider 1 similarly second and third column

then cross multiply we get    $\frac{x}{10-28}=\frac{y}{14+4} =\frac{1}{4+5}$  

$\frac{x}{-18} =\frac{y}{18} =\frac{1}{9}$    ,now equating we get x=-2 and y=2

Answer 2

Answer:

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Step-by-step explanation:

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