Mathematics: Suppose you drive 75 miles and use 3 gallons of gasoline

Suppose you drive 75 miles and use 3 gallons

mrmendrala

22.09.2022

$\bold{Answer}$

$\boxed{\bold{Y \ = \ 1, \ X \ = \ 5}}$

$\bold{Explanation}$

$\bold{Use \ Elimination \ Method: \ \begin{bmatrix}x+y=6\\ x-y=4\end{bmatrix}}$

$\bold{----------------}$

$\bold{Isolate \ x \ for \ x+y=6: \ x=6-y}$

$\bold{Substitute \ X \ = \ 6 \ - \ y}$

$\bold{\begin{bmatrix}6-y-y=4\end{bmatrix}}$

$\bold{isolate \ y \ for \ 6-y-y=4: \ Y \ = \ 1}$

$\bold{For \ x=6-y}$

$\bold{Substitute \ y \ = \ 1}$

$\bold{6-1=5}$

$\bold{x=5}$

$\boxed{\bold{Eclipsed}}$

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