SOLUTION: I am really confused about algebra. Like problems such as: 2(x+3)=9+x..and other problems including more variables. Can someone please help me?

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Question 733808: I am really confused about algebra. Like problems such as: 2(x+3)=9+x..and other problems including more variables. Can someone please help me?
Found 2 solutions by stanbon, MathLover1:
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
2(x+3)=9+x.
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2x+6 = 9+x
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2x-x = 9-6
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x = 3
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Cheers,
Stan H.
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Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!

2%28x%2B3%29=9%2Bx....first multiply 2%28x%2B3%29

2x%2B6=9%2Bx....now isolate variable x; add -x to both sides

2x-x%2B6=9%2Bx-x...cancel x and -x on right side
2x-x%2B6=9
x%2B6=9.....add -6 to both sides
x%2B6-6=9-6...cancel 6 and -6 on left side
x=9-6
highlight%28x=3%29...solution for variable x and it is only solution that makes 2%28x%2B3%29=9%2Bx true