SOLUTION: if 18-3(5-x)=x-7, then x=?

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Question 198875: if 18-3(5-x)=x-7, then x=?
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!

18-3%285-x%29=x-7 Start with the given equation.


18-15%2B3x=x-7 Distribute.


3x%2B3=x-7 Combine like terms on the left side.


3x=x-7-3 Subtract 3 from both sides.


3x-x=-7-3 Subtract x from both sides.


2x=-7-3 Combine like terms on the left side.


2x=-10 Combine like terms on the right side.


x=%28-10%29%2F%282%29 Divide both sides by 2 to isolate x.


x=-5 Reduce.


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Answer:

So the solution is x=-5