Question

$2x + 199 = 9999$
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Answer 1

2x+199=9999

2x=9999-199

2x=9800

X=9800/2

X=4900

Answer 2

$2x + 199 = 9999 \\ \\ 2x = 9999 - 199 \\ \\ 2x = 9800 \\ \\ x = \frac{9800}{2} \\ \\ x = 4900$