luciferokumak
luciferokumak
05-01-2018
Mathematics
contestada
−8y+9x=−5 8y+7x=−75 x= y=
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ElenaClaudia
ElenaClaudia
05-01-2018
-8y + 9x = -5
8y + 7x = -75 +
--------------------------
/ 16x = -80
x = -80/16
x = -5
8y + 7x = -75
8y - 35 = -75
8y = -75 + 35
8y = -40
y = -40/8
y = -5
Answer
: x = y = -5
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