talscriv talscriv

26-11-2020
Mathematics

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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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