Geography, 19.04.2020 03:13, Marcus2935

Thuy wrote the system of equations.
24x+36y=72
-16x+By - 80
If the second equation is multiplied by 3, what should the first equation be multiplied by to eliminate the x variable by addition?
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Thuy wrote the system of equations.
24x+36y=72
-16x+By - 80
If the second equation is...