SEARCH HOME
 Math Central Quandaries & Queries
 Question from pheter, a student: 4/x - 1/y = 3 .... equation (1) 6/x - 2/y = 5 .... equation (2)

Hi,

Rewrite the equations as

$4 \times \frac{1}{x} - 1 \times \frac{1}{y} = 3$

and

$6 \times \frac{1}{x} - 2 \times \frac{1}{y} = 5.$

Now substitute $s = \frac{1}{x}, t = \frac{1}{y}$ and solve for $s$ and $t.$

Penny

Math Central is supported by the University of Regina and the Imperial Oil Foundation.