Question

Solve by substitution method:

x + 2y =3 and 3x + 7y =10​

Answer 1

Answer:

x=3-2y

3(3-2y)+7y=10

9-6y+7y=10

9+y=10

y=1

x=3-2(1)

x=3-2

x=1

(x,y)=(1,1)

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Answer 2

Answer:

1 and 0

Step-by-step explanation:

x+2y=3

x+y=3-2

x+y=1

3x+7y=10

x+y=10-7-3

x+y= 0

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