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6. -2
7. Solution
8. 3x+4 = 46
=> 3x = 42
=> x = 14
9. Add 5 to two times n to get 11.
10. x+x-3 = 95
=> 2x = 98
=> x = 49
11. x+(x/2) = 30
=> 3x/2 = 30
=> 3x = 60
=> x = 20
8. 8
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