SOLUTION: 0.3x-0.4=0.2x+7

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Question 596064: 0.3x-0.4=0.2x+7
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
0.3x-0.4=0.2x%2B7 Start with the given equation.


10%280.3x-0.4%29=10%280.2x%2B7%29 Multiply both sides by 10 to clear out the decimals.


3x-4=2x%2B70 Distribute and multiply.


3x=2x%2B70%2B4 Add 4 to both sides.


3x-2x=70%2B4 Subtract 2x from both sides.


x=70%2B4 Combine like terms on the left side.


x=74 Combine like terms on the right side.


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Answer:

So the solution is x=74