SOLUTION: Solve the system by addition or substitution. 3x + 6y = 0 x = 2/3 (this is a fraction) The 6y = 0 and x = 2/3 are supposed to be lined up under each other

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Question 102510: Solve the system by addition or substitution.
3x + 6y = 0
x = 2/3 (this is a fraction)
The 6y = 0 and
x = 2/3 are supposed to be lined up under each other if this helps anyone, it doesnt help me that is why I need your help.
Thank you.

Found 2 solutions by oberobic, stanbon:
Answer by oberobic(2304)   (Show Source): You can put this solution on YOUR website!


Substituting the value 2/3 into the first equation, we have:
, which simplifies to:
.
Subracting 2 from both sides, we have:
.
Dividing through by 6:

Always check. So substitute x=2/3 and y=-1/3 back into the original equation:
. Check.

Answer by stanbon(75887)   (Show Source): You can put this solution on YOUR website!
Solve the system by addition or substitution.
3x + 6y = 0
x = 2/3
------------
Substitute to solve for y:
3(2/3) + 6y = 0
2 + 6y = 0
y = -1/3
-------------
Solution: x = 2/3; y = -1/3
===================
Cheers,
Stan H.

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