SOLUTION: what are the steps to Solve the equation 3x – 4(2x + 1) = 21 and show each step in the solution

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Question 255693: what are the steps to Solve the equation 3x – 4(2x + 1) = 21 and show each step in the solution
Answer by EMStelley(208) About Me  (Show Source):
You can put this solution on YOUR website!
3x+-+4%282x+%2B+1%29+=+21
The first step here would be to distribute the 4 through the parentheses:
3x+-+4%282x%29+-4%281%29+=+21
3x+-+8x+-+4+=+21
Now we combine like terms:
-5x+-+4+=+21
Add 4 to both sides:
-5x+=+25
Divide both sides by -5:
x+=+-5