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Solve for x x + 21 = -2x
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10 votes
Solve for x x + 21 = -2x

User Joseph Marikle
by
5.5k points

1 Answer

5 votes

Answer

-7

Explanation:

x + 21 = -2 x

-x -x

21 = -3 x

--- -----

-3 -3

-7 = x

User Ramusus
by
5.7k points
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