whats the answer to xy=3a-4, yz=6a+2,xz=5a+22

find the valueof the variable and yz if y is between x and z.
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1 Answer

XY-YZ=XZ

3A-4+6A+2=5A+22

9A-4+2=5A+22

9A-2=5A+22

  +2   +2

______________

9A=5A+24

-5A -5A

4A=24

_  _

4  4

A=6

 

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