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5x+9+7x+3=180? what is the anwser

Paulwalker  Apr 26, 2017
 #1
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5x+9+7x+3=180

 

5x+7x+9+3=180

12x+12=180

12x+12-12=180-12

12x=168

x= 168/12

x=14

Melody  Apr 26, 2017

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