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15-04-2020
Mathematics

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Substitution:(x=2y) (y=x-2)

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canieatsomefood canieatsomefood

15-04-2020

Answer:

2=y

4=x

Step-by-step explanation:

x=2y

y=2y-2

add 2 to both sides

2+y=2y

subtract y from both sides

2=1y

2=y

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