talscriv
talscriv
26-11-2020
Mathematics
contestada
Substitution method x=-y
8x+3y=40
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yulissa313149
yulissa313149
26-11-2020
The answer would be 16
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meowmeow223334
meowmeow223334
26-11-2020
Plug in -y for x in the equation
8(-y) + 3y = 40
5y = 40
y = 8
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