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Solve for x -x + 1 = x + 21
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2 votes
Solve for x

-x + 1 = x + 21

User Aaron Bell
by
6.8k points

1 Answer

4 votes

Answer:


x=-10

Explanation:


-x+1=x+21

Subtract 1 from both sides:


-x+1-1=x+21-1\\-x=x+20

Subtract x from both sides:


-x-x=x+20-x\\-2x=20

Divide both sides by -2:


(-2x)/(-2)=(20)/(-2)\\x=-10

User Jgravois
by
6.7k points
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