zoeehardman
zoeehardman zoeehardman
  • 06-10-2015
  • Mathematics
contestada

solve −4 = −(−k − 86)+10

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HetaliaForever
HetaliaForever HetaliaForever
  • 06-10-2015
K= 100
 
You use distributive property 

Step 1: 
−(−k)−1(−86)+10=−4

Step 2: 
k−1(−86)+10=−4

Step 3: 
k+86+10=−4

Step 4: 
k+96=−4

Step 5:  
k=−96−4

Step 6:  
Subtract 4 from −96 to get −100.
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narusakufan
narusakufan narusakufan
  • 06-10-2015

The first step -4=k-86-10 second- k-76=-4 third step 76-4= 72 substitute 72 in for k  72-76= -4 this is true
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