SOLUTION: i need help with solving variables on both sides the quetion is 2x+21=9x-7

SOLUTION: i need help with solving variables on both sides the quetion is 2x+21=9x-7

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Question 321633: i need help with solving variables on both sides the quetion is 2x+21=9x-7
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
i need help with solving variables on both sides the quetion is 2x+21=9x-7
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2x+21=9x-7
Subtract 2x from both sides.
21 = 7x - 7
Now x is on just 1 side.
Add 7
28 = 7x
x = 4

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