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OpenStudy (anonymous):
Use the substitution method to solve the system of equations. Choose the correct ordered pair. y = 7x + 8 y = x + 20 A. (3, 29) B. (2, 22) C. (2, 8) D. (7, 8)
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OpenStudy (godlovesme):
plug "7x+8" in the y=x+20 formula for y and try to solve for x
OpenStudy (anonymous):
ok
OpenStudy (godlovesme):
\[7x+8=x+20 \]
OpenStudy (anonymous):
x=2
OpenStudy (godlovesme):
then plug 2 for x and solve for y
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OpenStudy (anonymous):
We can eliminate A and D
OpenStudy (godlovesme):
yes :)
OpenStudy (anonymous):
Would it be B?
OpenStudy (godlovesme):
yes u r right :)
OpenStudy (anonymous):
Sweet!! :D Thanks!
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OpenStudy (godlovesme):
np
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