2x+y=6and 4x+6y=4 is
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Hi ,
2x + y = 6
y = 6 - 2x -----( 1 )
4x + 6y = 4 ---( 2 )
Put y = 6 - 2x in equation ( 2 ) ,
4x + 6 ( 6 - 2x ) = 4
4x + 36 - 12x = 4
- 8x = 4 - 36
- 8x = - 32
x = ( - 32 ) / ( - 8 )
x = 4
Put x = 4 in equation ( 1 ) , we get
y = 6 - 2( 4 )
= 6 - 8
= -2
Therefore ,
( x , y ) = ( 4 , - 2 )
I hope this helps you.
: )
2x + y = 6
y = 6 - 2x -----( 1 )
4x + 6y = 4 ---( 2 )
Put y = 6 - 2x in equation ( 2 ) ,
4x + 6 ( 6 - 2x ) = 4
4x + 36 - 12x = 4
- 8x = 4 - 36
- 8x = - 32
x = ( - 32 ) / ( - 8 )
x = 4
Put x = 4 in equation ( 1 ) , we get
y = 6 - 2( 4 )
= 6 - 8
= -2
Therefore ,
( x , y ) = ( 4 , - 2 )
I hope this helps you.
: )
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