SOLUTION: 2x+5x+7=21

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Question 579672: 2x+5x+7=21
Answer by computergeek008(7) About Me  (Show Source):
You can put this solution on YOUR website!
2x+5x+7=21
1. Combine like terms.
7x + 7 = 21

2. Subtract 7 from both sides.
7x = 14

3. Divide both sides by 7 to isolate the x.
x = 2
Solution: x = 2