Question

2000:(2x+ 510) = 2 .​

Answer 1

$2000 \div (2x + 510) = 2 \\ \frac{2000}{2x + 510} = 2 \\ \frac{2000}{2(x + 255)} = 2 \\ \frac{1000}{x + 255} = 2 \\ 1000 = 2(x + 255) \\ 500 = x + 255 \\ - x = 255 - 500 \\ - x = - 245 \\ x = 245$

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2000:(2×245+510)=2

2000:1000=2 ✓