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Question

Solve

x=y+6
2(x+y)=43y

A
133,53
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B
263,83
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C
263,83
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D
163,73
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Solution

The correct option is C 263,83
x=y+6

x+y=6 --- ( 1 )

2(x+y)=43y

2x+2y=43y

2x+5y=4 ----- ( 2 )

Multiplying eqaution ( 1 ) by 2,

2x+2y=12 ---- ( 3 )

Subtracting eqation ( 2 ) from ( 3 ) we get,

3y=8

y=83

Substituting value of y in equation ( 1 ),

x+(83)=6

x=6+83

x=18+83

x=263

(x,y)=(263,83)

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