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OpenStudy (anonymous):
n
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OpenStudy (anonymous):
It's one of these but I'm not sure.
jimthompson5910 (jim_thompson5910):
hint: add the equations to get 2x + 5y = -4 4x - 5y = 22 -------------- 8x+0y = 18 so 8x = 18 x = ???
jimthompson5910 (jim_thompson5910):
oops typo, I meant to say 6x = 18 not 8x = 18
OpenStudy (anonymous):
x = 3
jimthompson5910 (jim_thompson5910):
good, 6x = 18 turns into x = 3
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OpenStudy (anonymous):
Now for y we just plug in 3 for x and find out from there?
jimthompson5910 (jim_thompson5910):
exactly, plug in x = 3 into any equation with x and y, then solve for y
OpenStudy (anonymous):
I found -2 = y. Am I right?
jimthompson5910 (jim_thompson5910):
y = -2 is correct
jimthompson5910 (jim_thompson5910):
nice work
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OpenStudy (anonymous):
Thanks for your help!
jimthompson5910 (jim_thompson5910):
you're welcome
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