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OpenStudy (anonymous):
Use the substitution method to solve the system of equations. Choose the correct ordered pair. 2x + 3y = 29 x = 4 A. (4, 7) B. (4, 11) C. (7, 4) D. (3, 2) could you maybe walk me through this just to make sure i got it @Zale101
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OpenStudy (zale101):
you already have x=4, a variable is already given, s0 plug x as 4 to the equation to get y
OpenStudy (zale101):
plug it to the first equation, i think you can handle this xD Like you did in the first problem because this one is simply easier
OpenStudy (anonymous):
A? i got 7
OpenStudy (zale101):
how did you get 7?
OpenStudy (anonymous):
2x4+3y=29
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OpenStudy (zale101):
2(4)+3y=29 8+3y=29 3y=21 y=7
OpenStudy (anonymous):
Ok! So then it would be (4,7)
OpenStudy (anonymous):
Correct?
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