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Best Answer
2n - 7 = 5n - 10
subtract 2n from each side
- 7 = 3n - 10
add 10 to each side
3 = 3n
divide both sides integers by 3
1 = n
=======check in original equation
2(1) - 7 = 5(1) - 10
2 - 7 = 5 - 10
- 5 = - 5
========checks
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