SOLUTION: solve: 6 - z 3z - 7 ----- - ------- = z - 2 2 - z simplify answer

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Question 144502: solve:
6 - z 3z - 7
----- - ------- =
z - 2 2 - z
simplify answer

Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
6 - z 3z - 7
----- - ------- =
z - 2 2 - z
:
%286-z%29%2F%28z-2%29 - %283z-7%29%2F%282-z%29
:
Note that if we can multiply the 2nd denominator by -1, changes the signs inside the brackets
%286-z%29%2F%28z-2%29 - %283z-7%29%2F%28-1%28z-2%29%29
:
dividing by -1 changes the sign of the fraction
%286-z%29%2F%28z-2%29 + %283z-7%29%2F%28z-2%29
:
The denominators are the same:
%286+-+z+%2B+3z+-+7%29%2F%28z-2%29 = %282z-1%29%2F%28z-2%29