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6-x-x=18 I'm not sure how to solve this problem I keep getting -9 but I'm not sure

6-x-x=18 I'm not sure how to solve this problem I keep getting -9 but I'm not sure
asked 40.2k views
2 votes
6-x-x=18 I'm not sure how to solve this problem I keep getting -9 but I'm not sure

asked
User Alinpopescu
by
7.4k points

1 Answer

4 votes
6 - x - x = 18

6 - 2x = 18

-2x = 12


-2x/-2 = 12/-2

x = -6

hope this helps
answered
User Ilya Tchivilev
by
7.8k points
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