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  • 18-08-2020
  • Mathematics
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Evaluate the expression 6z+5(-2z-7) for z=-1

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CoalitionStorm
CoalitionStorm CoalitionStorm
  • 18-08-2020

Answer:

-31

Step-by-step explanation:

First let's plug in the value of z into the expression as it looks easier than expanding,

6(-1) + 5(-2(-1)-7)

Now we follow the order of PEMDAS,

6(-1) + 5(2-7)

6(-1) + 5(-5)

-6 - 25

-31

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