Question

Solve the system.

{2n+7m=13n+10m=3.\left\{\begin{array}{r}2 n+7 m=1 \\ 3 n+10 m=3 .\end{array}\right.

Solution

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Answered 2 years ago
Answered 2 years ago
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Use the process of elimination.

{20n+70m=10(multiply 10)21n70m=21(multiply 7)\begin{dcases} 20n+70m=10&(\text{multiply }10)\\ -21n-70m=-21&(\text{multiply }-7) \end{dcases}

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