Seudónimo Seudónimo
  • 02-02-2017
  • Mathematics
contestada

What's 3z - 4 and 2z + 5

Whats 3z 4 and 2z 5 class=

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trjanderson
trjanderson trjanderson
  • 02-02-2017
3z-4+2z+5
5z+1
 Hope this helped

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mathwizzard3
mathwizzard3 mathwizzard3
  • 02-02-2017
Your just combining like terms here! 

By adding the you can just start by combining them with a plus sign. Like so:
3z - 4 + 2z + 5

Now you can combine terms with a z. So 3z and 2z which is 5z. So you can write this:
5z - 4 + 5

Now you have to combine the plain old numbers (but remember to take a look at the sign - or +) So -4 and + 5 which is +1 So this is your answer:
5z + 1

Hope that helps! Feel free to ask me if you have any questions! ^-^

- mathwizzard3
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