Question

3X-5y=20
6X -10y =40

Answer 1

true this is true answer

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Answer 2

Answer:

3x - 5y = 20

3x = 20 + 5y

$x = \dfrac{20 + 5y}{3}$

_________________________

6x - 10y = 40

Putting x value.

$\cancel 6 × \dfrac{20 + 5y}{\cancel 3}$ - 10y = 40

2 ( 20 + 5y ) - 10y = 40

40 + 10y - 10y = 40

0 = 40 - 40

0 = 0

Answer is - 0