SOLUTION: what are the steps for the following 9+x=4x-21

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Question 583605: what are the steps for the following
9+x=4x-21
Answer by JBarnum(2146) About Me  (Show Source):
You can put this solution on YOUR website!
9%2Bx=4x-21 get variables on same side by subtracting x from both sides
9=3x-21 add 21 to both sides
30=3x divide both sides by 3
10=x