Question

20 X by 21 - 20 X by 19 equal to 50​

Answer 1

Answer:

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Answer 2

$= > \frac{20x}{21} - \frac{20x}{19} = 50 \\ = > \frac{380x - 420x}{19 \times 21} = 50 \\ = > 380x - 420x = 50 \times 21 \times 19 \\ = > - 40x = 19950 \\ = > x = - \frac{19950}{40} \\ = > x = - 498.75$