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anonymous
 4 years ago
solve using the elimination method 9x + 11y = 86
9x – 2y = 5 please if you understand this method explain it because I do not understand how to use it
anonymous
 4 years ago
solve using the elimination method 9x + 11y = 86 9x – 2y = 5 please if you understand this method explain it because I do not understand how to use it

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asnaseer
 4 years ago
Best ResponseYou've already chosen the best response.1ok  you have two equations and have two unknowns to find  x and y the process involves using one equation to eliminate one of the variables. so, from the first equation we have: 9x + 11y = 86 therefore 9x = 86  11y now substitute this into the second equation to get: 9x  2y = 5 therefore 86  11y  2y = 5 therefore 86  13y = 5

asnaseer
 4 years ago
Best ResponseYou've already chosen the best response.1from the last equation you should be able to work out what y is. then use this value of y in any of the original equations to work out what x is.

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0so you eliminated 9x all together?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0ok that is what I was doing wrong thank you so much

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0So if im correct there is no solution?

asnaseer
 4 years ago
Best ResponseYou've already chosen the best response.1there is a solution. the last equation we got to was: 86  13y = 5 therefore 13y = 86 + 5 = 91 therefore y = 7 now use the equation 9x + 11y = 86 to work out the value for x.
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