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andrey2020 [161]
3 years ago
7

Solve the system by the substitution method. X+Y=-3 Y=-4x

Mathematics
2 answers:
iragen [17]3 years ago
8 0

x = 1, y = - 4

substitute y = - 4x into the other equation

x - 4x = - 3

- 3x = - 3 ( divide both sides by - 3 )

x = 1

substitute x = 1 into y = - 4x ⇒ y = - 4


ycow [4]3 years ago
7 0
Find it I cannot find it
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