SOLUTION: 3(2z-1)-2(z+4)=2(z+1) solve, me and a fellow student got different asnwers and confuse to who is correct? please help

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: 3(2z-1)-2(z+4)=2(z+1) solve, me and a fellow student got different asnwers and confuse to who is correct? please help      Log On


   

Question 619068: 3(2z-1)-2(z+4)=2(z+1)
solve, me and a fellow student got different asnwers and confuse to who is correct? please help
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
3%282z-1%29-2%28z%2B4%29=2%28z%2B1%29 Start with the given equation.


6z-3-2z-8=2z%2B2 Distribute.


-11%2B4z=2z%2B2 Combine like terms on the left side.


4z=2z%2B2%2B11 Add 11 to both sides.


4z-2z=2%2B11 Subtract 2z from both sides.


2z=2%2B11 Combine like terms on the left side.


2z=13 Combine like terms on the right side.


z=%2813%29%2F%282%29 Divide both sides by 2 to isolate z.


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Answer:

So the solution is z=13%2F2

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