Seudónimo
Seudónimo
21-09-2020
Mathematics
contestada
Please answer my question
Respuesta :
mlarsen5000
mlarsen5000
21-09-2020
Answer:
D) n=13
Step-by-step explanation:
n+n+7+2n-12+3n+4=90
7n-1=90
7n=90+1
7n=91
n=91/7
n=13
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