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OpenStudy (anonymous):
Solve by the multiplication with add or subtract method 3x - 4y = 45 7x + 6y = 13
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OpenStudy (wolf1728):
A) 3x - 4y = 45 B) 7x + 6y = 13 Multiply A) by 1.5 A) 4.5x -6y = 67.50 B) 7x +6y =13 Ading both equations 11.5x = 80.50 x = 7 Substituting 7 into equation B 49 + 6y = 13 6y = 36 y = -6
OpenStudy (anonymous):
OpenStudy (anonymous):
Thank you guys so much
OpenStudy (j2lie):
Is this a substitution or elimination problem?
OpenStudy (anonymous):
Just the multiplication with adding and substracting
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OpenStudy (j2lie):
oh ok.
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