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anonymous
 4 years ago
Solve using substitution method:
9x  7y = 8
anonymous
 4 years ago
Solve using substitution method: 9x  7y = 8

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anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0I don't know how to do substitution.

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0there's supposed be another equation....

razor99
 4 years ago
Best ResponseYou've already chosen the best response.0yeah hey where is the pther equation.

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0oh woops 9x  7y = 8 18x  14y = 7

Directrix
 4 years ago
Best ResponseYou've already chosen the best response.09x  7y = 8 9x = 8 + 7y x = (8 + 7y)/9 Substitute into the second equation: 18 [(8 + 7y)/9]  14y = 7 2(8 + 7y)  14 y = 7 16 + 14y  14 y = 7 16 = 7 which cannot happen There is no solution to this system of equations. The graphs of the two lines are parallel and there is no common solution.

Directrix
 4 years ago
Best ResponseYou've already chosen the best response.0See graph at the link for visual confirmation. http://www.wolframalpha.com/input/?i=%289x++7y+%3D+8%29+and+%2818x++14y+%3D+7%29
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