Question

300+____+400=400+500+___&​

Answer 1

Answer:

$\tt300 + x + 400 = 400 + 500 + ...$

$\tt900 + x = 900 + ..$

$\tt900 + 100 = 900 + 100$

$\tt1000 = 1000$

Answer 2

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Answer is in the attachment ✌️✌️✌️

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