evaaaaa
evaaaaa
10-02-2016
Mathematics
contestada
solve what is the answer
-2z+3+7z=-12
Respuesta :
Billymkhoi
Billymkhoi
10-02-2016
-2z+3+7z=-12
⇒ (-2z+ 7z)+ 3= -12 (combine like terms)
⇒ 5z+ 3= -12
⇒ 5z= -12 -3
⇒ 5z= -15
⇒ z= -15/5
⇒ z= -3
Final answer: z= -3
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