SOLUTION: -[2z-(5z+2)]=2+(2z+7)

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Question 338886: -[2z-(5z+2)]=2+(2z+7)
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
-%282z-%285z%2B2%29%29=2%2B%282z%2B7%29 Start with the given equation.


-2z%2B%285z%2B2%29=2%2B%282z%2B7%29 Distribute the negative.


-2z%2B5z%2B2=2%2B2z%2B7 Remove any unnecessary parenthesis.


2%2B3z=2%2B2z%2B7 Combine like terms on the left side.


2%2B3z=2z%2B9 Combine like terms on the right side.


3z=2z%2B9-2 Subtract 2 from both sides.


3z-2z=9-2 Subtract 2z from both sides.


z=9-2 Combine like terms on the left side.


z=7 Combine like terms on the right side.


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Answer:

So the solution is z=7


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Jim