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How do you simplify n minus 10 plus 9n minus 3?

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n - 10 + 9n - 3
n + 9n - 10 - 3
10n - 13
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What is minus 5 plus 3?

-2 Same as plus 3 minus 5. If you don't believe it, Put +10 in front and take it away afterwards : 10-5+3-10 is 8-10 is -2. If you keep the sign in front of each number, then