3/5x+990=6/7x

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3/5x+990=6/7x
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3/5x+990=6/7x
3/5x+990=6/7x

3/5x+990=6/7x
3/5X+990=6/7X
990=6/7X-3/5X
990=30/35X-21/35X
990=9/35X
X=990*(35/9)=3850