I need help with a algebra 1 math question, its really confusing. someone please help quick
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OpenStudy (cggurumanjunath):
post ur q !
OpenStudy (anonymous):
if you don't mind I have a couple questions but the first one is. ....
OpenStudy (cggurumanjunath):
ok.
OpenStudy (anonymous):
Choose the equivalent system of linear equations that will produce the same solution as the one given below.
4x - 2y = 6
2x + y = 5
-4x - 2y = 10
-4y = 4
-4x - 5y = -1
-7y = 5
3x + 2y = 6
7x = 12
4x + 2y = 10
8x = 16
OpenStudy (anonymous):
algebra is very hard for me I need a tutor lol
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OpenStudy (cggurumanjunath):
ok. np. :)
OpenStudy (cggurumanjunath):
4x-2y=6 * /2
2x-y=3
OpenStudy (cggurumanjunath):
2x+y=5
OpenStudy (cggurumanjunath):
add 2 equations !
OpenStudy (anonymous):
im confused
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OpenStudy (cggurumanjunath):
4x=8
OpenStudy (anonymous):
the question is up there and the answers a b c d and under them.
OpenStudy (cggurumanjunath):
4x-2y=6
2x+y=5 ..... these are the given equations
OpenStudy (cggurumanjunath):
on solving them as shown above we get x=2
OpenStudy (anonymous):
what you gave me doesn't fit any of my answers though
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OpenStudy (cggurumanjunath):
d !
OpenStudy (anonymous):
4x + 2y = 10
8x = 16b ?
OpenStudy (cggurumanjunath):
2x-y=3
OpenStudy (cggurumanjunath):
2(2)-y=3
OpenStudy (cggurumanjunath):
4-3=1=y
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OpenStudy (anonymous):
Aswer d is
" 4x + 2y = 10
8x = 16 "
OpenStudy (cggurumanjunath):
yes .u r right !
OpenStudy (cggurumanjunath):
8x=16 * /2
x=2
OpenStudy (cggurumanjunath):
4x+2y=10
4(2)+2y=10
8+2y=10
2y=2
y=1
OpenStudy (anonymous):
My nxt question is " Solve the following system of equations:
-2x + y = 1
-4x + y = -1
(3, 1)
(-1, 3)
(-1, -3)
(1, 3)
"
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