SOLUTION: I'm getting confused on how to solve probelms using linear equations. This is the question 10x-(2x+3)=21 hope you can help, thanks

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Question 13189: I'm getting confused on how to solve probelms using linear equations.
This is the question
10x-(2x+3)=21
hope you can help, thanks
Answer by akmb1215(68) About Me  (Show Source):
You can put this solution on YOUR website!
In this problem, you first need to distribute the negative sign across the parentheses, which changes the problem to 10x+-+2x+-+3+=+21.
Now that you have done that, all equations are basically solved the same way:
1. Combine like terms. In this case, your equation changes to 8x+-+3+=+21.
2. Get everything with an x on one side and everything without an x on the other side of the equal sign. In this equation, you need to move -3 to the right side of the equal sign by adding it to both sides of the equal sign: 8x+=+24.
3. Solve for x. In this equation, divide both sides by 8, which gives you x=3.