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dmezzullo
 one year ago
Best ResponseYou've already chosen the best response.0erm, multiply the first equation by \(2\). that yields\[\begin{cases}2x = 4y  16 \\ 2x  3y = 13\end{cases}\]add both equations and solve for \(y\).

johnweldon1993
 one year ago
Best ResponseYou've already chosen the best response.0you already know what x equals...so sub it in for x in the second equation 2(2y+8)  3y = 13 Now just distribute and simplify

johnweldon1993
 one year ago
Best ResponseYou've already chosen the best response.0dmezz thats elimination ...the problem asked for substitution :)

newr3d
 one year ago
Best ResponseYou've already chosen the best response.0solve each system by the elimination method 1)3x+2y=10 2x+y=7 2)3x2y=7 2xy=8 3)2x+3y=13 4x+6y=10

harsimran_hs4
 one year ago
Best ResponseYou've already chosen the best response.0you already have the value of x from the first equation just substitute that value and get the answer
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