Mathematics Test—No Calculator

by rearranging the equation. Multiplying out the expression on the left side of the equation yields 3 x plus 3 y equals y. Then, subtracting 3. y from both sides of the equation gives 3 x, equals negative 2 y. Finally, dividing both sides of this equation by 3. y (note that . y. does not equal zero) gives the fraction . x over y ................
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