Example

3(r+2s)=2t-4
a⋅(b-2)=3b
3(r+2s)=2t-4
a⋅(b-2)=3b

Question

$$\frac { x } { 2 } + \frac { y } { 3 } = 2 = \frac { x } { 4 } + \frac { y } { 2 }$$

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