Mathematics
10 Online
OpenStudy (adll23):
A system of equations is shown below:
x + y = 3
2x - y = 6
The x-coordinate of the solution to this system of equations is _____. (4 points)
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jhonyy9 (jhonyy9):
@adll23 do you wan collaborate please ?
OpenStudy (adll23):
i think so @bibby
OpenStudy (adll23):
?? @jhonyy9
jhonyy9 (jhonyy9):
ok how you that is the right easy way ? than you see this system
OpenStudy (raffle_snaffle):
You can solve this one of 3 ways.
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jhonyy9 (jhonyy9):
how you think
OpenStudy (adll23):
what are the 3 ways @raffle_snaffle
OpenStudy (adll23):
idk @jhonyy9
OpenStudy (raffle_snaffle):
You can either add them or you can solve using system of equations.
OpenStudy (adll23):
oh i see ill add them
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OpenStudy (raffle_snaffle):
show me you work please=)
OpenStudy (adll23):
1x+1y=3
2x-1y=6
it equals 3x+0y=9
is this right?
OpenStudy (adll23):
@raffle_snaffle
OpenStudy (jdoe0001):
hmm if you solve the 2nd one, 2x-y=6, for say... "y", what does it give you anyway?
OpenStudy (raffle_snaffle):
yep
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OpenStudy (adll23):
idk i am really bad at math
OpenStudy (raffle_snaffle):
Okay lets solve using the other method.
OpenStudy (raffle_snaffle):
lets take x+y = 3. you can solve for x or y which one would you like to solve for?
OpenStudy (adll23):
x
OpenStudy (adll23):
@raffle_snaffle
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jhonyy9 (jhonyy9):
@adll23 please write your calculi here
OpenStudy (adll23):
idk how
jhonyy9 (jhonyy9):
how you have got these results by elimination method
jhonyy9 (jhonyy9):
x+y=3
2x-y=6
OpenStudy (raffle_snaffle):
subtract y |dw:1456703615144:dw|from both sides.