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OpenStudy (jjuden):
How many solutions are there to the following system of equations? 3x – 9y = 0 –x + 3y = –3
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OpenStudy (jjuden):
a 0 b 1 c 2 d infinitely many
OpenStudy (cloverracer):
is this from connections academy? (:
OpenStudy (jjuden):
no
OpenStudy (jjuden):
k12
OpenStudy (raffle_snaffle):
go for loser66
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OpenStudy (raffle_snaffle):
Okay we can solve this a few different ways. We need to first take one of the equation and solve for either x or y.
OpenStudy (jjuden):
ok
OpenStudy (raffle_snaffle):
So which equation would you like to start with?
OpenStudy (jjuden):
the first one
OpenStudy (raffle_snaffle):
|dw:1387062821978:dw| which variable would you like to solve for y or x?
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OpenStudy (jjuden):
x
OpenStudy (raffle_snaffle):
okay so solve for x by isolating it on one side of the equals sign
OpenStudy (jjuden):
ok
OpenStudy (raffle_snaffle):
|dw:1387063064725:dw|
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