Which of the following shows two equations that have the same solution?
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OpenStudy (anonymous):
OpenStudy (anonymous):
a
OpenStudy (anonymous):
@whpalmer4
OpenStudy (johnweldon1993):
^Disagree
OpenStudy (anonymous):
john you r wrong
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OpenStudy (johnweldon1993):
2x + y = 7
y = 2x + 7
Change the first one into slope intercept...
2x + y = 7
y = -2x + 7
So again...incorrect
OpenStudy (anonymous):
are you realated to elemanty school music teacher
OpenStudy (anonymous):
john r u?
OpenStudy (johnweldon1993):
Related to an elementary music school teacher? No I am not
OpenStudy (anonymous):
so is it A?
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OpenStudy (johnweldon1993):
No @isa_243 I showed above why A is incorrect
OpenStudy (anonymous):
oh ok
OpenStudy (anonymous):
john the question is not that perplexing
OpenStudy (anonymous):
i think its B? @johnweldon1993
OpenStudy (johnweldon1993):
Not quite @isa_243 ...
B) x - 2y = 13
2y - x = 13
Can you make these 2 equations looks exactly the same?
x - 2y = 13
-2y = x + 13
2y = -x - 13
2y - x = 13
2y = x + 13
So no again
Just do as I am showing...put each equation in slope intercept form (y = mx + b) and see if they are the same
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OpenStudy (anonymous):
ok its D @johnweldon1993
OpenStudy (johnweldon1993):
2x + 2y = 12
2x - 2y = -12
Put both in slope intercept
2y = -2x + 12
and
-2y = -2x - 12
2y = 2x + 12
Still not the same