SOLUTION: 21 = 17 + x/3 solve

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Question 336177: 21 = 17 + x/3
solve
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!

21=17%2Bx%2F3 Start with the given equation.


3%2821%29=3%2817%2Bx%2Fcross%283%29%29 Multiply both sides by the LCD 3 to clear any fractions.


63=51%2Bx Distribute and multiply.


0=51%2Bx-63 Subtract 63 from both sides.


-x=51-63 Subtract x from both sides.


-x=-12 Combine like terms on the right side.


x=%28-12%29%2F%28-1%29 Divide both sides by -1 to isolate x.


x=12 Reduce.


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Answer:

So the answer is x=12


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Jim