SOLUTION: Solve for r: 3r-4=4(r-3)

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Question 196847: Solve for r: 3r-4=4(r-3)
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!

3r-4=4%28r-3%29 Start with the given equation.


3r-4=4r-12 Distribute.


3r=4r-12%2B4 Add 4 to both sides.


3r-4r=-12%2B4 Subtract 4r from both sides.


-r=-12%2B4 Combine like terms on the left side.


-r=-8 Combine like terms on the right side.


r=%28-8%29%2F%28-1%29 Divide both sides by -1 to isolate r.


r=8 Reduce.


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Answer:

So the solution is r=8