\left\{ \begin{array} { l } { \frac { x + 1 } { 3 } = \frac { y + 2 } { 4 } } \\ { \frac { x 3 } { 4 } \frac { y 3 } { 3 } = \frac { 1 } { 12 } } \end{array} \right.

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Calculus
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Type your math problem... \left\{ \begin{array} { l } { \frac { x + 1 } { 3 } = \frac { y + 2 } { 4 } } \\ { \frac { x - 3 } { 4 } - \frac { y - 3 } { 3 } = \frac { 1 } { 12 } } \end{array} \right.

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